No. Question Answer

01 The theory of relativity was propounded by Albert Einstein

02 The principal metal used in manufacturing steel is Iron

03 An alimeter is used for measuring Altitude

04 Oology is the study of Birds eggs

05 Radioactivity was discovered by Henry Bacquerel

06 The metal used in storage batteries is Lead

07The instrument used to measure the relative humidity of air is

Hygrometer

08 Barometer was invented by Torricelli

09 The unit of power is Watt

10 Radium was discovered by Marie and Pierrie Curie

11 The existence of isotopes was discovered by Frederick Soddy

12 Dynamo was invented by Michael Faraday

13 The nuclear reactor was invented by Enrico Ferni

14 The law of gravitation was propounded by Sir Isaac Newton

15 Crescograph was invented by J.C.Bose

16 Crescograph is used to measure the Rate of growth of a plant

17 Galileo’s first scientific discovery was Pendulum

18 Microscope was invented by Aaton Van Leewen Hock

19The scientist who is known as father of modern biology is

Aristotle

20 The first person to see a cell under microscope was Robert Hooke

21 The smallest flowering plant is Worffia

22 The four blood groups were discovered by Karl Landsteiner

23 Sodium was discovered by Sir Humphry Davy

24 The atomic number of oxygen is Eight

25 The basic building blocks of proteins are Amino acids

26 The botanical name of the cotton plant is Gossipium Hirsutum

27 An Electroscope is used to Detect charges on a body

28 The unit of loudness is Phon

29 An ammeter is used to measure Electric current

30 Plant that eat insects are called Insectivorous plants

31 Fruits that are formed without fertilization are called Parthenocarpic

32Plants that flower only once in their lifetime are called

Mono carpic

33 The botanical name for rice is Oryza Sativa

34 Penicillin is obtained from Mould

35 The largest tree in the world is Seguoia Gigantica

36 Herpetology is the study of Reptiles

37 Entomology is the study of Insects

38 Ornithology is the study of Birds

39 Ichtyology is the study of Fishes

40 Osteology is the study of Bones

41 The botanical name for brinjal is Solanum melongenal

42 The botanical name for onion is Allium Cepa

43 The study of sound is called Acoustics

44 The study of heavenly bodies is called Astronomy

45 The study of tissues is called Histology

46 Electric Lamp was invented by Thomas alva Edison

47 The fear of crowd is called Ochlophobia

48 The fear of books is called Bibliophobia

49 The fear of going to bed is called Clinophobia

50 The symbol of gold is Au

51 The symbol of sodium is Na

52 The symbol of Sr stands for Strontium

53 The symbol Rb stands for Rubidium

54 The symbol Md stands for Mendelevium

55 Calcium sulphate is commonly called Plaster of Paris

56 Sodium carbonate is commonly called Washing Soda

57 Sodium chloride is commonly known as Common Salt

58 The chemical name of Chloroform is Trichloromethane

59 The chemical name of baking powder is Sodium bicarbonate

60 The chemical name of bleaching powder is Calcium hypochlorite

61 The formula HCL stands for Hydrochloric Acid

62 The formula H2SO4 stands for Sulphuric Acid

63 The formula CHCI3 stands for Trichloromethane

64 The formula H2O2 stands for Hydrogen peroxide

65 A fungus which can only survive on other living Obligate Parasite

organisms is called

66 A plant which lives in the dark is called Scotophyte

67 A plant adapted to live in dry places is called a Xerophyte

68 A plant adapted for growth in water is called a Hydrophyte

69 Bifocal lens was invented by Benjamin Franklin

70 Cement was invented by Joseph Aspdin

71 Laser was invented by Dr.Charles H.Townes

72 Electromagnet was invented by William Sturgeon

73 Rayon was invented by Sir Joseph Swann

74 Thermostat is an instrument used for regulating Constant temperature

75The science of organic forms and structures is known as

Morphology

76 Phycology is the study of Algae

77Tata Institute of Fundamental Research was established in

1945

78 CSIR stands forCouncil of Scientific and Industrial Research

79 ISRO stands forIndian Space Research Organisation

80 The first human being to land on moon was Neil Armstrong

81 The first Indian in space was Rakesh Sharma

82 ISAC stands for ISRO Satellite Centre

83 VSSC stands for Vikram Sarabhai space Centre

84 The headquarters of ISRO is located at Bangalore

85 VSSC is located at Thiruvananthapuram

86 ISAC is located at Bangalore

87 National Science Centre is located at New Delhi

88 Central Tobacco Research Institute is located at Rajahmundry

89Indian Institute of Horticultural Research is located at

Bangalore

90 The Atomic Energy Commission was set up in August 1948

91 The first Indian Satellite was Aryabhatta

92 The first Indian Satellite was launched in the year 1975

93 ASLV stands forAugmented Satellite Launch Vehicle

94 INSAT stands for Indian National Satellite

95 The fear of women is known as Gynophobia

96 The fear of men is known as Androphobia

97The scientist who developed the Quantum theory was

Max Plonck

98 The steam engine was invented by James Watt

99 The botanical name of tea is Camellia Sinensis

100 Logarithms were devised by John Napier

101 The acid used in a car battery is Sulphuric acid

102The system for writing by blind people was invented by

Louis Braille

103 The parachute was used for the first time by J.P.Blanchard

104The German physicit who first demonstrated the existence of Radio waves was

Henrich Hertz

105The instrument that records the intensity of earthquakes is

Seismograph

106 The laws of floating bodies was discovered by Archimedes

107 The density of milk is measured by a Lactometer

108 Fountain pen was invented by L.E.Waterman

109The instrument used to measure the pressure of gases is the

Monometer

110 Bhaskara I was a famous Astronomer

111The first atomic power station established in India was the

Tarapore Atomic Power Station

112 The role of heredity was demonstrated by Mendel

113The instrument used to measure the concentration of salt water is the

Salinometer

114 Spectroscopy is the study of Anders John Angstrom

115 Dactylography is the study of Finger Prints

116 A tangent galvanometer is used to study the Strength of direct current

117 The fruit of Oak is called Acron

118 ZETA stands forZero Energy Thermonuclear Assembly

119 The formula C6H5OH stands for Phenol

120Michael Faraday worked as an assistant under another scientist whose name was

Sir Humphry Davy

121 Vulcanised rubber was invented by Charles Goodyear

122 The symbol Zn stands for Zinc

123 The symbol He stands for Helium

124 Celluloid was invented by A.Parker

125 Glider was invented by Sir George Caley

126 Safety matches was invented by J.E.Lundstrom

127 Radio valve was invented by Sir J.A.Fleming

128 Space Applications Centre is located at Ahmedabad

129 Atomic Energy Commission is located at Mumbai

130 Dynamics is the study of Movements of bodies

131 Statics is the study of Forces acting on bodies at rest

132 Mechanics is the study of Forces acting on bodies

133 Zoology is the study of Animal life

134 Botany is the study of Plant life

135 Psychology is the study of Human mind

136 The first American to orbit earth was John H.Glen

137 The electro-cardiograph was invented by William Einthoven

138 The molecular formula of cane sugar is C12H22O11

139A compound which contains only hydrogen and Carbon is called a

Hydrocarbon

140The liquid used to preserve specimens of plans and animals is

Formalin

141 The law of segregaton was propounded by Mendel

142 Auriscope is used to detect Ear disorders

143 The three states of matter are Solid,liquid and gas

144 The scientific name for blood platelets is Thrombocytes

145 The response of a plant to heat is called Thermotropism

146 The response of a plant to touch is called Trigmotropism

147 The symbol Zr stands for Zirconium

148 Nickel was discovered by Cronstledt

149 Manganese was discovered by Gahn

150 The common name for pottasium carbonate is Potash

151 Bismuth was discovered by Valentine

152 The biggest plant seed is Cocodemer

153 Toxicology is the study of Poisons

154 Virology is the study of Viruses

155 Paleontology is the study of Fossils

156 Calorimeter is used to measure Quantity of heat

157 Chronometer was invented by John Harrison

158 Stethoscope was invented by William Stockes

159 Spinning frame was invented by Sir Richard Arkwright

160 Al stands for Aluminium

161 Gd stands for Gadolinium

162 Ir stands for Iridium

163 Bi stands for Bismuth

164 The Chemical formula of sodium bicarbonate is NaHCO3

165 The chemical formula of common salt is Nacl

166 The chemical formula of washing soda is Na2CO3,IOH2O

167 The chemical formula of lime soda is CaCO3

168 The chemical formula of chloroform is CHcl3

169 The study of grasses is known as Agrostology

170 The study of antiquities is known as Archaeology

171 The study of the duration of life is known as Chronobiology

172 The study of bacteria is known as Bacteriology

173 Nylon was invented by Dr.Wallace H.Carothers

174 Electric razor was invented by Jacob Schick

175 The symbol of silver is Ag

176 The symbol of silicon is Si

177 The symbol of titanium is Ti

178 Calcium oxide is commonly known as Quick lime

179A deviation of light passing from one medium to another is known as

Refraction

180An apparatus for generation of atomic energy is called a

Reactor

181A machine used for converting mechanical energy into electrical energy is called a

Generator

182 The first Indian woman in space was Kalpana Chawla

183 The revolver was invented by Samuel Colt

184 The refrigerator was invented by J.Perkins

BIOLOGY QUESTIONS

1. Stem is modified into cladode :(A) Casuarina(B) Asparagus(C) Opuntia(D) Euphorbia

2. Verticillaster type of inflorescence is found in :(A) Cotton(B) Datura(C) Lilium(D) Ocimum

3. A simple one seeded fruit in which pericarp is fused with seed coat is :(A) Achene(B) Caryopsis(C) Cypsela(D) Nut

4. The portion of DNA which contains information for an entire polypeptide is called :(A) Cistron(B) Muton(C) Recon(D) Operon

5. Bicarpellary, syncarpous ovary with axile placentation is seen in :(A) Solanaceae(B) Caesalpinaceae(C) Asteraceae(D) Malvaceae

6. Alburnum is also called :(A) Autumn wood(B) Heart wood(C) Sap wood(D) Spring wood

7. The entry of pollen tube into the ovule through micropyle is called :(A) Porogamy(B) Mesogamy(C) Anisogamy(D) Chalazogamy

8. Type of pollination in Commelina is :(A) Chasmogamy(B) Geitonogamy

(C) Xenogamy(D) Cleistogamy

9. The process of embryo formation without fertilization is known as :(A) Apospory(B) Apogamy(C) Parthenocarpy(D) Polyembryony

10. Which of the process Cholodny-Went theory is concerned with ?(A) Photomorphogenesis(B) Photoperiodism(C) Phototropism(D) Photorespiration

11. The hormone present in the liquid endosperm of coconut is :(A) Cytokinin(B) Gibberellin(C) Ethylene(D) Auxin

12. The phytohormone which influences apical dominance growth is :(A) IAA(B) ABA(C) GA3

(D) C2H4

13. An example of short day plant is :(A) Wheat(B) Maize(C) Chrysanthemum(D) Radish

14. The ovary after fertilization is converted into :(A) Embryo(B) Endosperm(C) Fruit(D) Seed

15. The molecular formula of Chlorophyll ‘a’ is :(A) C55H72O5N4Mg(B) C55H70O5N4Mg(C) C55H72O6N4Mg(D) C50H72O5N4Mg

16. The first compound that accepts CO2 during dark phase is :(A) NADP(B) Ferrodoxin

(C) RUBP(D) Cytochrome

17. Initiation codon for methionine is :(A) AAA(B) UUU(C) UAA(D) AUG

18. The deficiency of this micronutrient results in little leaf disease :(A) Copper(B) Zinc(C) Boron(D) Iron

19. Kranz anatomy is a morphological diversity in the leaves of :(A) C3-plants(B) C4-plants(C) C3 and C4-plants(D) CAM plants

20. Prechilling treatment to break seed dormancy is :(A) Scarification(B) Stratification(C) Impaction(D) Vernalization

21. The pyruvic acid formed during glycolysis is oxidized to CO2 and H2O in a cycle called :(A) Calvin cycle(B) Nitrogen cycle(C) Hill reaction(D) Krebs cycle

22. Respiratory quotient (RQ) is one in case of :(A) Fatty acids(B) Nucleic acids(C) Carbohydrates(D) Organic acids

23. An example of free living nitrogen fixing aerobic bacteria is :(A) Clostridium(B) Rhizobium(C) Azotobacter(D) Rhodospirillum

24. Identify the plant belonging to the Reed-Swamp stage in hydrarch succession :(A) Juncus(B) Sagittaria

(C) Salix(D) Trapa

25. A gas produced by paddy fields and connected with global warming is :(A) CO2

(B) Chlorine(C) H2S(D) Methane

26. If the strong partner is benefited and the weak partner is damaged, it is known as :(A) Predation(B) Allelopathy(C) Symbiosis(D) Commensalism

27. Acid rain is mainly caused due to increase in the levels of the gas(es) :(A) SO2 only(B) CO2 only(C) SO2, CO2

(D) NO2 and SO2

28. The flow of energy among various trophic levels of an ecosystem is :(A) Unidirectional(B) Bidirectional(C) Multidirectional(D) Circular

29. Increase in atmospheric temperature due to CO2 is called :(A) Pasteur effect(B) Green-house effect(C) Blackman effect(D) Emerson effect

30. The protective-ozone layer is present in :(A) Ionosphere(B) Stratosphere(C) Troposphere(D) Lithosphere

31. Decomposition of organic matter is brought about by :(A) Protozoa(B) Plants(C) Micro-organisms(D) None of these

32. The smallest taxon is called :(A) Class(B) Order

(C) Genus(D) Species

33. Which one of the following is the first National Park in India ?(A) Kanha National Park(B) Periyar National Park(C) Corbett National Park(D) Bandipur National Park

34. Which one of the following is having ssRNA ?(A) TMV(B) T2-bacteriophage(C) Polio Virus(D) CMV

35. In Whittaker’s system of classification, prokaryotes are placed in the kingdom :(A) Protista(B) Monera(C) Plantae(D) Animalia

36. Virus consists of :(A) Nucleic acid and protein(B) Nucleic acid(C) Orotein(D) None of these

37. This substance is present in the cell walls of Gram Positive bacteria only :(A) Peptidoglycan(B) Lipopolysaccharides(C) Teichoic acids(D) None of these

38. Highest degree of polymorphism is found in :(A) Protozoa(B) Cnidaria(C) Platyhelminthes(D) Arthropoda

39. Sea mouse belongs to phylum :(A) Mollusca(B) Cnidaria(C) Arthropoda(D) Annelida

40. One of the following animal belongs to Cyclostomata :(A) Channa(B) Loris

(C) Dodo(D) Petromyzon

41. An egg laying mammal is :(A) Delphinus(B) Macaca(C) Ornithorhynchus(D) Macropus

42. In sharks, one of the following is absent :(A) Claspers(B) Placoid scales(C) Cartilaginous endoskeleton(D) Air bladder

43. The devil fish and sea hare are :(A) Molluscs(B) Crustaceans(C) Coelenterates(D) Marine fish and mammal

44. Endothelium of blood vessels is made up of :(A) Simple cuboidal epithelium(B) Simple squamous epithelium(C) Simple columnar epithelium(D) Simple non-ciliated columnar

45. In humans, sphincter of Oddi is associated with the opening of :(A) Common hepatopancreatic duct(B) Pyloric stomach(C) Oesophagus(D) Colon

46. In human beings, the duration of cardiac cycle is :(A) 0•08 second(B) 0•5 second(C) 0•8 second(D) 8•0 second

47. In which part of nephron, reabsorption is minimum from filtrate ?(A) Henle’s loop(B) Proximal convoluted tubule(C) Distal convoluted tubule(D) Collecting duct

48. Which hormone level reaches peak during luteal phase of menstrual cycle ?(A) Luteinizing hormone(B) Progesterone

(C) Follicle stimulating hormone(D) Estrogen

49. The largest subunit of prokaryotic ribosomes is :(A) 30S(B) 40S(C) 50S(D) 60S

50. Which of the following is a part of endomembrane system of eukaryotic cell ?(A) Peroxisomes(B) Chloroplasts(C) Mitochondria(D) Golgi complexes

51. Inflammation of joints due to accumulation of uric acid crystals is called as :(A) Gout(B) Myasthenia gravis(C) Osteoporosis(D) Osteomalacia

52. Chromosomes are visible with chromatids at this phase of mitosis :(A) Interphase(B) Prophase(C) Metaphase(D) Anaphase

53. Inheritance of ABO blood grouping is an example of :(A) Dominance(B) Codominance(C) Incomplete dominance(D) All of these

54. In a dihybrid cross between RRYY and rryy parents, the number of RrYy genotypes in F2 generation will be :(A) 4(B) 3(C) 2(D) 1

55. Identify a 47, + 21 disorder from the following :(A) Down’s syndrome(B) Turner’s syndrome(C) Phenylketonuria(D) Klinefelter’s syndrome

56. Uracil is present in RNA at the place of :(A) Adenine

(B) Guanine(C) Cytosine(D) Thymine

57. Copying genetic information from one strand of DNA into RNA is :(A) Translation(B) Transcription(C) Transformation(D) Transduction

58. S. L. Miller’s closed flask contained :(A) CH4

(B) H2

(C) NH3 and Water vapour(D) All of these

59. Change of frequency of alleles in a population results in evolution is proposed in :(A) Darwin’s theory(B) Lamarck’s theory(C) Hardy-Weinberg principle(D) De Vries theory

60. One of the following is the vestigial organ in human beings :(A) Nictitating membrane(B) Spleen(C) Femur(D) Tibia

61. The golden age of reptiles is :(A) Cenozoic era(B) Palaeozoic era(C) Mesozoic era(D) Silurian period

62. The theory of use and disuse of organ was proposed by :(A) Darwin(B) Lamarck(C) De Vries(D) Hooker

63. One of the following theories were proposed by Weissman :(A) Law of inheritance(B) Theory of inheritance of acquired characters(C) Theory of natural selection(D) Theory of germplasm

64. Ontogeny recapitulates phylogeny— this theory is called :

(A) Biogenetic law(B) Law of embryology(C) Law of acquired characters(D) Law of Bridges

65. The brain capacity of Homoerectus is :(A) 800 cc(B) 900 cc(C) 1200 cc (D) 1400 cc

66. An example of Innate immunity is :(A) PMNL-neutrophils(B) T-lymphocytes(C) B-lymphocytes(D) TH cells

67. Cocaine is extracted from :(A) Erythroxylum coca(B) Cannabis sativa(C) Papaver somniferum(D) Atropa belladonna

68. The enzyme that cuts DNA is :(A) DNA-polymerase(B) DNA-ligase(C) DNA-lyase(D) Restriction endonuclease

69. In the association between two organisms, if one organism is benefited and the other is not benefited, this relationship is known as :(A) Symbiotism(B) Mutualism(C) Commensalism(D) Parasitism

70. Opiate narcotics drugs are :(A) Antianxiety(B) Analgesic(C) Hypnotic(D) Antihistamine

71. The drug useful to increase cardiovascular effects in human beings is :(A) Cocaine(B) Barbiturate(C) Benzodiazetine(D) Insulin

72. In echolocation, the animal that produces high frequency sounds is :(A) Monkey(B) Butterfly(C) Squirrel(D) Bat

73. Two kingdoms constantly figured in all biological classifications are :(A) Plantae and Animalia(B) Monera and Animalia(C) Protista and Animalia(D) Protista and Plantae

74. The dioecious animal is :(A) Liverfluke(B) Hookworm(C) Tapeworm(D) Earthworm

75. Comb plates are found in :(A) Adamsia(B) Aurelia(C) Nereis(D) Pleurobrachia

Answers with Hints1. (B) Cladode is a type of phylloclade consisting of one internode only. These are cylindrical (not fleshy) and are mistaken for leaves.2. (D) Verticillaster is a complex inflorescence found in the Ocimum sanctum, a member of family Labiatae.3. (B) 4. (A) 5. (A) 6. (C) 7. (A)8. (D) Cleistogamy is seen in underground flowers of Commelina bengalensis which are small and inconspicuous. This plant also bears chasmogamous blue flowers above.9. (B) 10. (C) 11. (A) 12. (A)13. (C) Short day plant (SDP) requires a relatively short day light period (usually 8-10 hrs.) and a continuous dark period of about 14–16 hours for subsequent flowering.14. (C) 15. (A) 16. (C) 17. (D) 18. (B)19. (B) Kranz anatomy—It is a typical structure in the leaves of plants that have a C4–pathway of CO2 fixation. The leaves contain a ring of mesophyll cells, containing a few chloroplasts surroundings a sheath of bundle sheath cells having large chloroplasts involved in the Calvin cycle.20. (B) 21. (D) 22. (C) 23. (C) 24. (B) 25. (D) 26. (A)27. (D) Acid rain results from the emission into the atmosphere of various pollutant gases in particular sulphur dioxide (SO2) and oxides of nitrogen (NO2), which originate from the burning of fossil fuels and from motor-car exhaust fumes, respectively.28. (A) 29. (B) 30. (B) 31. (C) 32. (D)33. (C) The first National Park in India was set up in 1935 in the foot hills of Himalayas and was known as Hailey National Park. It is now known as Corbett National Park.34. (A) Tobacco mosaic virus (TMV) is a rigid rod-shaped ssRNA-containing virus that causes

distortion and blistering of leaves in a wide range of plants.35. (B) Kingdom Monera includes all prokaryotes. They are basically unicellular but can be mycelial, colonial and filamentous.36. (A) 37. (A)38. (B) A striking feature of cnidarians is the high degree of polymorphism often seen in a single species. Two basic types—sessile polyp and free-swimming medusa–occur.39. (D) 40. (D) 41. (C)42. (D) Members of Elasmobranchii subclass have no swim (air) bladders.43. (D) 44. (B) 45. (A) 46. (C) 47. (C) 48. (B) 49. (C)50. (D) Golgi complex is a part of endomembrane system, which is the system of internal membranes within eukaryotic cells that divide the cell into functional and structural compartments, or organelles.51. (A) 52. (B)53. (B) AB blood group in human is an example of codominance in which both the alleles IA IB are equally expressed. It means IA IB individuals have a phenotype that is essentially a combination of those shown by individuals with A and B blood groups.54. (A)55. (A) A small autosome, chromosome 21, added to the normal complement (47, + 21) causes Down syndrome. This is a trisomic for chromosome 21.56. (D) 57. (B) 58. (D) 59. (C) 60. (A)61. (C) The Mesozoic era is often known as the “Golden Age of Reptiles” as these animals, which included the dinosaurs and ichthyosaurs, became dominant lifeform.62. (B) 63. (D) 64. (A) 65. (B) 66. (A) 67. (A)68. (D) Restriction enzyme is a class of nucleases originally extracted from the E . coli. Type I restriction enzymes bind to a recognition site of duplex DNA, travel along the molecule and cleave one strand only. Type II cleaves the duplex at specific target site at or near the binding site.69. (C) 70. (B) 71. (A) 72. (C) 73. (A) 74. (B) 75. (D)

Multiple choice  Questions about Human Body

1. What is the body temperature of a normal man? A. 81.1oC B. 36.9oC C. 98.6oC D. 21.7oC

2. Which of the following helps in clotting of blood? A. Vitamin B1 B. Vitamin B2 C. Vitamin D D. Vitamin K

3. Total volume of blood in a normal adult human being is A. 5-6 liters B. 3-4 liters C. 8-10 liters D. 10-12 liters

4. Red blood corpuscles are formed in the A. Liver B. Bone marrow C. Kidneys D. Heart

5. How many bones are there in an adult human being? A. 210 B. 260 C. 206 D. 300

6. The pancreas secretes A. Insulin B. Bile juice C. Peptic juice D. None of these

7. Tibia is a bone found in the A. Skull B. Arm C. Leg D. Face

8. The largest part of the human brain is the A. Medulla oblongata B. Cerebellum C. Cerebrum D. None of these

9. What is the main component of bones and teeth? A. Calcium carbonate

B. Calcium phosphate C. Calcium sulphate D. Calcium nitrate

10. The main constituent of hemoglobin is A. Chlorine B. Iron C. Calcium D. None of these

11. The main function of the kidney is A. To control blood pressure B. To control body temperature C. To remove waste product from the body D. To help in digestion of food

12. The function of hemoglobin is A. Transportation of oxygen B. Destruction of bacteria C. Prevention of anemia D. Utilization of energy

13. Which of the following glands secrete tears? A. Lachrymal B. Pituitary C. Thyroid D. Pancreas

14. Which is the largest gland in the human body? A. Thyroid B. Liver C. Pancreas D. None of these

15. Which is the largest organ in the human body? A. Liver B. Heart C. Skin

D. Kidney

16. A person of which of the following blood groups is called a universal donor? A. O B. AB C. A D. B

17. Which gland in the human body is called the master gland? A. Pancreas B. Thyroid C. Pituitary D. Spleen

18. How many bones are there in a newly born infant? A. 206 B. 230 C. 280 D. 300

19. Which of the following have maximum calorific value? A. Carbohydrates B. Fats C. Proteins D. Vitamins

20. Which of the following vitamins promote healthy functioning of eyes in human beings?

A. Vitamin B B. Vitamin C C. Vitamin A D. Vitamin D

21. The average heartbeat per minute in a normal man is A. 50 B. 70 C. 80 D. 100

22. A person with which of the following blood groups can receive blood of any group? A. A B. AB C. B D. O

23. Malaria is a disease which effects the A. Heart B. Lungs C. Spleen D. Kidneys

24. Which of the following diseases is caused by virus? A. Small pox B. Tuberculosis C. Malaria D. Cholera

25. Medulla oblongata is a part of human A. Heart B. Brain C. Liver D. Sex organ

26. Myopia is a disease connected with A. Ears B. Eyes C. Lungs D. Brain

27. Leukemia is a disease of the A. Lungs B. Blood C. Skin D. Nerves

28. Short-sightedness can be corrected by using A. Convex lens B. Concave lens C. Convex-concave lens D. Concave-convex lens

29. Trachoma is a disease of the A. Liver B. Eyes C. Lungs D. Kidneys

30. Match the following

Column I Column II

A. Beriberi 1. Vitamin A B. Scurvy 2. Vitamin B C. Rickets 3. Vitamin C D. Night Blindness 4. Vitamin D

A B C D(a) 3 2 1 4(b) 2 1 3 4(c) 2 3 4 1(d) 2 3 1 4

31. Typhoid and cholera are typical examples of A. Infectious diseases B. Air-borne disease C. Water-borne disease D. None of these

32. Pyorrhea is a disease of the A. Nose B. Gums C. Heart D. Lungs

33. Lack of what causes diabetes. A. Sugar B. Insulin

C. Calcium D. Vitamins

34. Appendix is appendix is a part of A. Small intestine B. Large intestine C. Stomach D. Liver

35. Match the following columns

Column I Column II

A. Cataract 1. Bones B. Jaundice 2. Eyes C. Diabetes 3. Liver D. Arthritis 4. Pancreas

A B C D(a) 2 3 4 1(b) 2 3 1 4(c) 1 3 4 2(d) 3 2 4 1

36. Bronchitis is a disease of which of the following organs? A. Blood B. Bladder C. Liver D. Respiratory tract

37. ECG is used for the diagnosis of aliments of A. Brain B. Heart C. Kidneys D. Lungs

38. Biopsy is done on A. Tissues taken from a dead body B. Tissues taken form a living body C. Blood from veins D. Blood from arteries

39. Barium is used for A. Checking blood group B. X-ray of alimentary canal C. X-ray of brain D. None of these

40. Dialysis is used for the treatment of A. Kidney failure B. Heart weakness C. Brain diseases D. None of these

41. Insulin is injected into the intestines by A. Pancreas B. Liver C. Stomach D. Gall bladder

42. Lock Jaw, i.e., difficulty in opening the mouth is a symptom of A. Cholera B. Plague C. Tetanus D. Diphtheria

43. Which of the following pairs is incorrect? A. Plague-rats B. Rabies-dog C. Tapeworm-pig D. Poliomyelitis-monkey

44. Match the following columns

Column I Column II

A. Air-borne 1. Tetanus B. Water-borne 2. Tuberculosis C. Contact 3. Cholera D. Wound 4. Syphilis

A B C D(a) 2 3 1 4(b) 2 3 4 1(c) 3 2 4 1(d) 4 3 2 1

45. Ricketts is a disease of the A. Bones B. Tissue C. Muscles D. Blood

46. Which of the following statements is correct A. Pulmonary artery carries pure blood B. Pulmonary artery carries impure blood C. Pulmonary vein carries impure blood D. None of these

47. Lungs are situated in the A. Abdominal cavity B. Pericardial cavity C. Buccal cavity D. Thoracic cavity

48. The human cell contains A. 44 chromosomes B. 48 chromosomes C. 46 chromosomes D. 23 chromosomes

49. Enzymes help in A. Respiration B. Digestion of food C. Immune system D. Reproduction

50. Food is normally digested in the A. Liver B. Stomach C. Small intestines

D. Large intestines

Answers

1. b 2. d 3. a 4. b 5. c

6. a 7. c 8. c 9. b 10. b

11. c 12. a 13. a 14. b 15. c

16. a 17. c 18. d 19. a 20. c

21. b 22. b 23. c 24. a 25. b

26. b 27. b 28. b 29. b 30. c

31. c 32. b 33. b 34. b 35. a

36. d 37. b 38. b 39. b 40. a

41. d 42. c 43. d 44. b 45. a

46. b 47. d 48. c 49. b 50. c

General Science Biology Questions

1. Which of the following is a ‘club moss’ ?(A) Selaginella(B) Equisetum(C) Lycopodium(D) None of theseAns : (C)

2. Raphe in Marsilea is present in—(A) Female gametophyte(B) Sporocarp(C) Sporophyte(D) Male gametophyteAns : (B)

3. The stele type occurring in Marsilea is—(A) Solenostele(B) Protostele(C) Amphiphloic Siphonostele(D) All of theseAns : (C)

4. The morphological nature of rhizophore of Selaginella is—(A) Root like

(B) Stem like(C) Both root and stem like(D) Rhizoid likeAns : (C)

5. The Selaginella shows—(A) Large and small leaves arranged spirally(B) All leaves large(C) All leaves small(D) All of theseAns : (A)

6. The anatomy of Pinus needle reflects the features of a—(A) Mesophyte (B) Xerophyte(C) Hydrophyte (D) EpiphyteAns : (B)

7. Girdling leaf traces are the characteristic feature of the stem of—(A) Cycas (B) Pinus(C) Ephedra (D) GnetumAns : (A)

8. Pinus is a—(A) Tree (B) Shrub(C) Herb (D) None of theseAns : (A)

9. The recent era is—(A) Cenozoic (B) Mesozoic(C) Proterozoic (D) ArcheozoicAns : (A)

10. Fossils are found in—(A) Igneous rocks (B) Quartz(C) Soil (D) Sedimentary rocksAns : (D)

11. Reserve food material in fungi is—(A) Glycogen (B) Starch(C) Sucrose (D) MaltoseAns : (A)

12. Which is rootless fern ?(A) Pteris(B) Dryopteris(C) Salvinia (D) AdiantumAns : (C)

13. Which is common between aerobic respiration and anaerobic respiration ?(A) Similar substrate (B) Glycolysis(C) Pyruvic acid (D) All of theseAns : (B)

14. Turpentine oil is obtained from—(A) Coal (B) Petroleum(C) Cedarwood (D) PinusAns : (D)

15. Which alga was used by Calvin and his co-workers in their experiments of photosynthesis ?(A) Chlamydomonas (B) Chlorella(C) Chara (D) VolvoxAns : (B)

16. Which is an oilseed crop ?(A) Marigold (B) Chrysanthemum(C) Rose (D) SunflowerAns : (D)

17. The first transgenic plant used for commercial production was—(A) Cotton (B) Tomato(C) Tobacco (D) RiceAns : (B)

18. Rare hybrid plants can be saved by—(A) Pollen culture(B) Embryo culture(C) Protoplast culture(D) None of theseAns : (C)

19. Which is not a category ?(A) Ecotype (B) Species(C) Genus (D) OrderAns : (A)

20. Linnaeus published his concept of binomial nomenclature first in—(A) Systema Naturae(B) Species Plantarum(C) Genera Plantarum(D) Philosophia BotanicaAns : (B)

21. When chlorophyll is burnt which element is obtained ?(A) Ca (B) Na(C) Mg (D) MnAns : (C)

22. Iron deficiency results in—(A) Leaf tip necrosis(B) Small leaves disease(C) Decreased protein synthesis(D) Intervenal chlorosis appearing first in young leavesAns : (D)

23. A phytohormone is—(A) Naturally produced(B) Synthetic substance(C) Both (A) and (B)(D) None of theseAns : (A)

24. During the seismonastic movement in Mimosa pudica turgor changes occur in—(A) Leaflets(B) Stipules(C) Pulvinus leaf base(D) Petiole and stem

Ans : (C)

25. Evergeen trees remain green through the year on account of—(A) Cold climate(B) Absence of leaf fall(C) Leaves falling in small number interval(D) Supply of moisture throughout yearAns : (C)

26. Phenotypic ratio of dihybrid test cross is—(A) 15 : 1 (B) 3 : 1(C) 9 : 3 : 3 : 1 (D) 1 : 1 : 1 : 1Ans : (C)

27. The damaged ozone layer is situated in—(A) Ionosphere (B) Mesosphere(C) Stratosphere (D) TroposphereAns : (C)

28. Which one of the following is ordinarily not an air pollutant ?(A) CO2 (B) CO(C) SO2 (D) HydrocarbonAns : (A)

29. Genes are made by—(A) Histones (B) Lipoproteins(C) Hydrocarbons (D) PolynucleotidesAns : (D)

30. The term ‘ecosystem’ was proposed by—(A) Odum (B) Tansley(C) Whitker (D) GoliAns : (B)

31. The first juvenile larva of Ascaris is known as—(A) Filiform larva(B) Rhabditiform larva(C) Miracidium larva

(D) MicrofilariaeAns : (B)

32. Chromosomes contain—(A) Protein only(B) DNA and protein(C) DNA, RNA and histone(D) DNA, RNA, histone and non-histone proteinsAns : (B)

33. Which are phagocytes in liver ?(A) Kupffer cells (B) Aciner cells(C) Diter cells (D) Hensen's cellsAns : (A)

34. Termites digest wood with the help of an enzyme secreted by the—(A) Salivary glands(B) Cells in the midgut(C) Symbiotic protozoa(D) Bacteria and fungi outside the bodyAns : (C)

35. In honeybee colony the drones are produced by—(A) Fertilized eggs(B) Unfertilized eggs(C) Larvae fed upon leaves(D) Fasting larvaeAns : (B)

36. Jacobson's organ is concerned with—(A) Smell (B) Burrowing(C) Touch (D) VisionAns : (A)

37. Body organisation in Hydra is of—(A) Tissue grade(B) Organ grade(C) Cellular grade(D) Organ system gradeAns : (A)

38. Leech obtains continuous blood flow from its victim by pouring in it—(A) Heparin (B) Hirudin

(C) Insulin (D) PepsinAns : (B)

39. Spicules of Sponges are formed by—(A) Procytes (B) Pinacocytes(C) Scleroblasts (D) ThesocytesAns : (B)

40. Heterocoelous centrum is a characteristics of—(A) Amphibia (B) Reptilia(C) Birds (D) MammaliaAns : (C)

41. The exclusively sedentary protochordate animals are found in the class—(A) Pterobranchia (B) Larvacea(C) Ascidiacea (D) ThaliaceaAns : (A)

42. Cytopyge is found in—(A) Paramecium (B) Entamoeba(C) Amoeba (D) TrypanosomaAns : (A)

43. Littoral form of animals is found—(A) In fresh water(B) In sea water near the shore(C) In deep sea(D) At the bottom of the seaAns : (D)

44. Bladder worm is a larva of—(A) Obelia (B) Silkmoth(C) Taenia (D) NereisAns : (C)

45. Which of the following secretions associated with digestion does not have enzymes ?(A) Bile

(B) Gastric juice(C) Saliva (D) Pancreatic juiceAns : (A)

46. Yellow fever is transmitted by—(A) Female Culex (B) Female Anopheles(C) Female Aedes (D) HouseflyAns : (C)

47. The covering membrane of the vacuole is known as—(A) Tonoplast (B) Cell wall(C) Plasma layer (D) None of theseAns : (A)

48. Age of fishes was known as—(A) Devonian (B) Ordovician(C) Crustaceous (D) SilurianAns : (A)

49. ‘Quartan malaria’ is caused by—(A) Plasmodium vivax(B) Plasmodium malariae(C) Plasmodium ovale(D) Plasmodium falciparumAns : (B)

50. The word ‘species’ was coined by—(A) John Ray (B) Mayer(C) J. Huxley (D) C. LinnaeusAns : (A)

51. An embryo of chick with 7 pairs of somites is—(A) 20 hours old (B) 22 hours old(C) 24 hours old (D) 18 hours oldAns : (C)

52. In the mammals, cleavage result formation of solid mass of cells known—

(A) Blastula (B) Gastrula(C) Morula (D) NeurulaAns : (C)

53. F1particles are found in—(A) Lysosome(B) Mitochondria(C) Golgi Body(D) Endoplasmic reticulumAns : (B)

54. The name ‘polytene chromosome’ suggested by—(A) E.G. Balbiani (B) Kollar(C) Heitz (D) BauerAns : (A)

55. Centriole is found in—(A) Animal cells (B) Red algae(C) Prokaryotes (D) Flowering plantsAns : (A)

56. The first phylum of animal kingdom exhibiting bilateral symmetry is—(A) Arthropoda (B) Annelida(C) Mollusca (D) PlatyhelminthesAns : (D)

57. The fresh water sponge is—(A) Spongella (B) Grantia(C) Euplectella(D) EuspongiaAns : (A)

58. Flame cells are related with—(A) Excretory system(B) Digestive system(C) Circulatory system(D) Respiratory systemAns : (A)

59. The intermediate host in the life cycle of F. hepatica (Liver fluke) is—(A) Sheep (B) Snail(C) Man (D) BirdAns : (B)

60. Vitelline membrane is found in—(A) Birds (B) Tunicates(C) Fishes (D) MammalsAns : (A)

61. Two-pigment system theory of photosynthesis was proposed by—(A) Hill Emerson (B) Emerson(C) Blackmann (D) Hatch and SlackAns : (B)

62. Photosynthetic pigments in chloroplast are embedded in membrane of—(A) Thylakoids(B) Photoglobin(C) Matrix(D) Envelope of chloroplastAns : (A)

63. The rate of photosynthesis is maximum in—(A) Green light (B) Blue light(C) Red light (D) White lightAns : (C)

64. All energy is trapped in pigment system-1 in—(A) ATP (B) Carbohydrate(C) NADH2 (D) P-700Ans : (D)

65. How many ATP molecules are produced, as a net gain, during the complete breakdown of glucose ?(A) 36 (B) 28(C) 12 (D) 18

Ans : (A)

66. Father of taxonomy is—(A) De Candolle (B) Hooker(C) Linnaeus (D) AristotleAns : (C)

67. For entry in gene pool, a mutation occur in—(A) Somatic cells (B) Germ cells(C) Plasma proteins (D) Somatic DNAAns : (B)

68. Vessels diffier from tracheids—(A) In being living(B) In being derived from a single cell(C) In having vertical row of cells and their cross wall dissolved(D) Because they conduct waterAns : (C)

69. Which one is true nut ?(A) Walnut (B) Cashewnut(C) Groundnut (D) CoconutAns : (B)

70. After transcription, the mRNA molecule—(A) Disintegrates(B) Moves into cytoplasm(C) Replicates itself(D) Reassociates to form its structureAns : (B)

71. Fossilization is also known by the—(A) Acclimatzation (B) Pasteurization(C) Preservation (D) TyndallizationAns : (C)

72. The branch that deals with the plants studies in the geological past is called—(A) Pteridology (B) Palaeobotany(C) Neurology

(D) ArchaeologyAns : (B)

73. Birbal Sahni Institute of Palaeobotany is situated at—(A) Allahabad (B) Delhi(C) Mumbai (D) LucknowAns : (D)

74. In plants, largest egg is found in—(A) Cycas (B) Sequoia(C) Pinus(D) SelaginellaAns : (A)

75. Which one of the following is an example of symbiosis ?(A) Utricularia (B) Agaricus(C) Lichen (D) MangoAns : (C)

76. Which of the following pteridophytes is known as ‘Horse-tail’ ?(A) Rhynia(B) Selaginella(C) Equisetum (D) None of theseAns : (C)

77. Marsilea is a—(A) Homosporic pteridophyte(B) Heterosporic pteridophyte(C) Non-sporic pteridophyte(D) Seeded pteridophyteAns : (B)

78. A plant bearing two types of spores is termed as—(A) Heterospory (B) Seed habit(C) Homospory (D) All of theseAns : (A)

79. In Pinus present only—(A) Male cone(B) Female cone

(C) Male and female cones(D) All of theseAns : (D)

80. Number of cotyledons found in the embryo of Cycas is—(A) 4 (B) 2(C) 3 (D) 1Ans : (B)

81. Bryophytes are—(A) Aquatic (B) Terrestrial(C) Amphibious (D) None of theseAns : (C)

82. Sporophyte is dependent on gametophyte in—(A) Algae (B) Pteridophyta(C) Fungi (D) BryophytaAns : (D)

83. In gametophytic phase of Bryophyta the last cell is—(A) Gamete (B) Spore(C) Elater (D) ZygoteAns : (A)

84. In Funaria, the calyptra is formed by—(A) Antheridium (B) Columella(C) Capsule (D) ArchegoniumAns : (D)

85. A bryophyte differes from pteridophyte in—(A) Archegonia(B) Lack of vascular tissue(C) Independent gametophyte(D) None of theseAns : (B)

86. Acid rain is mainly a mixture of—(A) Sulphuric acid and nitric acid

(B) Hexane and methane(C) Acetic acid and bromine(D) Ascorbic acid and citric acidAns : (A)

87. Ribosomes are sites for—(A) Protein synthesis(B) Photosynthesis(C) Fat synthesis(D) RespirationAns : (A)

88. Pyramid of energy is—(A) Alwayss inverted(B) Always upright(C) Sometimes inverted and sometimes upright(D) None of theseAns : (B)

89. ATP is—(A) An enzyme which brings about oxidation(B) A hormone(C) A molecule with high energy phosphate bond(D) A proteinAns : (C)

90. Which one of the following is not a feature of prokaryotic cell ?(A) Absence of nuclear membrane and the nucleus(B) Absence of cell organelles(C) Absence of genetic material(D) Absence of histone protein in the chromosomeAns : (C)

91. Which one of the following is highly dangerous radioactive pollutant ?(A) Phosphorus-32 (B) Sulphur-35(C) Strontium-90 (D) Calcium-40Ans : (C)

92. The indicator of SO2 pollution of air is—(A) Lichen (B) Fern(C) Black mould (D) MossAns : (A)

93. The founder of cell theory was—

(A) Wolf(B) Rudolf Virchow(C) Myen, Von Moll and Raspail(D) Schleiden and SchwannAns : (D)

94. Fats in our body are formed when—(A) There is little glycogen in the body(B) Blood sugar level becomes constant(C) Glycogen storage in liver and muscles is completed(D) Intake of protein is highAns : (C)

95. Liver performs several functions. One of these functions is—(A) Histolysis(B) Digestion of proteins(C) Glycogenesis(D) Maintaining salt balanceAns : (C)

96. Poison fangs of snakes are—(A) Maxillary teeth(B) Specialized structures(C) Premaxillary teeth(D) Vomerine teethAns : (A)

97. Wings of butterfly, bird and bat are—(A) Homologous organs(B) Analogous organs(C) Unrelated organs(D) Vestigeal organsAns : (B)

98. ‘Ozone Day’ is observed on—(A) January, 30 (B) April, 21(C) September, 16 (D) December, 5Ans : (C)

99. Which one of the following is the link between Annelida and Mollusca ?(A) Archaeopteryx (B) Peripatus(C) Neopilina (D) CoelacanthAns : (C)

100. The heartbeat is regulated by—(A) Pacemaker(B) Vagus nerve(C) Sympathetic nerve(D) All of theseAns : (D)

101. Which pair is correct ?(A) Microlecithal eggs — Dipnoi(B) Homolecithal eggs — Amphibia(C) Mesolecithal eggs — Bird(D) Centrolecithal eggs — InsectAns : (D)

102. The hypothesis of ‘Coupling and Repulsion’ for linkage was formulated by—(A) Sutton and Boveri(B) Bateson & Punnet(C) T.H. Morgan(D) W. SuttonAns : (B)

103. Balanoglossus is commonly known as—(A) Earthworm (B) Tapeworm(C) Corn worm (D) Tongue wormAns : (D)

104. In Drosophila, sex determination depends on—(A) Y-chromosome(B) X-chromosome(C) Autosome(D) X-chromosome & autosome bothAns : (D)

105. Nonsense codons are—(A) AUG, AAU, UAG(B) GGU, AGU, AUG(C) UAG, UAA, UGA(D) GAU, AAU, GUAAns : (C)

106. In which stage does centromere divide in two ?(A) Metaphase-I (B) Prophase-I(C) Metaphase-II (D) Anaphase-IIAns : (D)

107. Which animal is egg laying mammal ?(A) Didelphys (B) Macropus(C) Pteropus (D) TachyglossusAns : (D)

108. An oil producing gland on the tail of bird is known as—(A) Preen gland (B) Mucus gland(C) Green gland (D) Sebaceous glandAns : (A)

109. A snake that is viviparous is—(A) The Russell’s pitless viper(B) The pit viper(C) Rattle snake(D) KraitsAns : (B)

110. A gland which is found on undersurface of the thighs of male lizard ?(A) Sudorific gland (B) Femoral gland(C) Green gland (D) Stink glandAns : (B)

111. Which of the following is not a path flagellate ?(A) Leishmania (B) Giardia(C) Trypanosoma(D) NoctilucaAns : (D)

112. The Glochidium larva of Unio—(A) Is free swimming(B) Is ectoparasite on fish(C) Is endoparasite on fish(D) Lives in bottomAns : (B)

113. The term ‘Plasmalemma’ was given by—(A) C. Nageli & C. Cramer(B) J.Q. Plowe(C) Dancilli & Davson(D) Robertson

Ans : (B)

114. Smooth endoplasmic reticulum performs—1. Synthesis of lipids2. Glycogenolysis3. Sterol metabolism4. DetoxificationCodes :(A) Only 4 is correct(B) 1 and 2 both are correct(C) 2 and 3 both are correct(D) All are correctAns : (D)

115. The innermost layer of egg albumen in birds is called—(A) Inner thin albumen(B) Vitelline membrane(C) Dense alburmen(D) Chalaziferous layerAns : (B)

116. In which one of the following is the anus absent ?(A) Leech (B) Roundworm(C) Earthworm (D) FlatwormAns : (D)

117. Which type of jaw suspension is found in mammals ?(A) Autostylic (B) Holostylic(C) Craniostylic (D) HyostylicAns : (A)

118. Synthesis of urea in liver takes place by—(A) Nitrogen cycle (B) Krebs’ cycle(C) Glycolysis (D) Ornithine cycleAns : (D)

119. Sexual dimorphism is found in—(A) Hydra (B) Earthworm(C) Ascaris (D) FasciolaAns : (B)

120. Which of the following animals has a nervous system but no brain ?(A) Amoeba (B) Hydra(C) Cockroach (D) EarthwormAns : (B)

121. Aristotle’s Lantern occurs in—(A) Asteroidea (B) Echinoidea(C) Holothuroidea (D) CrinoideaAns : (B)

122. Neoteny is observed in—(A) Ambystoma (B) Alytes(C) Sycon (D) SacculinaAns : (A)

123. Kidneys are vital organs of the body because they help in—(A) Regulation of body fluids(B) Regulation of acid-base balance(C) Removal of metabolic wastes(D) All of these functionsAns : (D)

124. The infective stage of malarial parasite is—(A) Trophozoite (B) Merozoite(C) Sporozoite (D) CystAns : (C)

125. Parasitic castration occurs in—(A) Fasciola (B) Nereis(C) Sacculina (D) PalaemonAns : (C)

General Science Botany Questions

1. Match column A (Types of fruits) with column B (Examples) then select the correct answer from the options given below—Column Aa. Lomentumb. Samarac. Achened. AmphisacraColumn B1. Aegle2. Mirabilis3. Acacia4. Acer a b c d(A) 3 4 1 2(B) 3 1 2 4(C) 3 2 1 4(D) 3 4 2 1

2. Phototropic and geotropic movements in plants have been traced to be linked with—(A) Auxin(B) Gibberellin(C) Both (A) and (B)(D) Specific enzymes

3. The first case of polyembryony was reported in certain orange seeds by—(A) Brawn (B) Nawaschin(C) Maheswari (D) None of the above

4. When the change from sol into gel is reversible, the colloid is called—(A) Gelation (B) Solation(C) Suspension (D) Reversible colloid

5. The nuclear spindle consists of—(A) One type of fibre(B) Two types of fibres(C) Three types of fibres(D) Four types of fibres

6. Which of the following types of RNA takes a message from DNA in the nucleus to theribosomes in the cytoplasm ?(A) m-RNA (B) r-RNA

(C) t-RNA (D) All of the above

7. ‘The imbibition theory of ascent of sap’ was first suggested by—(A) Strasburger (B) Bose(C) Fischer (D) Sachs

8. The maximum transpiration occurs in—(A) Mesophytic plants(B) Hydrophytic plants(C) Xerophytic plants(D) All algae except cyanobacteria

9. The transfer of minerals from top soil to subsoil through soil-water is called—(A) Percolation (B) Conduction(C) Leaching (D) Transpiration

10. One of the important evolutionary features of alternation of generation from algae toflowering plants is—(A) Gradual elaboration of sporophyte(B) Gradual elaboration of gametophyte(C) Gradual elaboration of both sporophyte and gametophyte(D) Elimination of sporophyte

11. Circular DNA is found in—(A) Chloroplasts (B) Mitochondria(C) Bacteria (D) All of the above

12. Which of the following respiratory substrates has the highest value of respiratory quotient ?(A) Glucose (B) Protein(C) Fats (D) Malic acid

13. Who described mitochondria as bioplast ?(A) Altmann (B) Waldayer(C) Kollikar (D) Hanstein

14. Which of the following statements is/are correct regarding microtubules ?(A) They are about 200 A° to 270 A° in external diameter having an electron dense wall some 50A°

to 70A° thick(B) They can be considered as the universal components of eukaryotic cells(C) They are usually found in rotating conditions(D) All of the above statements are correct

15. The term ‘chromatophore’ was coined by—(A) Garner and Allard(B) W. Pfeffer(C) Nawaschin(D) Schmitz

16. Phytotron is a device by which—(A) Plants are grown in controlled environment(B) Leaf fall occurs on abscission layer(C) Mutations are produced in plants especially during spores formation(D) Protons are liberated after photosynthesis

17. Annual (growth) rings are formed by the activity of—(A) Xylem(B) Phloem(C) Both (A) and (B)(D) Cambium

18. The chief components of Hill’s reaction used in Blackmann’s reactions are—(A) ATP and ADP(B) ATP and NADPH2(C) NADP and ADP(D) ATP and NADH2

19. The process of the escape of liquid from the tip of uninjured leaf is called—(A) Transpiration (B) Osmosis(C) Guttation (D) Evaporation

20. The primitive type of stomata are found in—(A) Leaves of moss plants(B) Xerophytic leaves(C) Apophysis of capsule(D) Dorsiventral leaves of monocot

21. Long dark periods of short day plants (SDPs), if interrupted by a brief exposure of red light (660 μ) the flowering is—(A) Inhibited (B) Vigorous(C) Promoted (D) None of the above

22. Number of chromatids per chromosome complex at metaphase is—(A) Two in mitosis and one in meiosis(B) Two in mitosis and four in meiosis(C) Four in mitosis and two in meiosis(D) Two in both mitosis and meiosis

23. The dark staining region in a chromosome is called—(A) Euchromatin (B) Heterochromatin(C) Paracentric (D) Pericentric

24. Plastids are not found in—(A) Gram positive bacteria(B) Gram negative bacteria(C) Fungi(D) All of the above

25. Bacterial nucleoid consists of—(A) One double-stranded DNA(B) Two double-stranded DNA(C) Two single-stranded DNA(D) One single-stranded DNA

26. The number of chromosomes in Pinus pollen grain in 12, the number of chromosomes in the endosperm of its own is—(A) 6 (B) 12(C) 24 (D) 36

27. During protein synthesis in prokaryotes, the initiation of polypeptide chain is inducedby—(A) Serine (B) Lysine(C) Methionine (D) Leucine

28. In Oxalis, the flowers open in the morning and close during evening because of—(A) Phototropism (B) Phototaxis(C) Photonasty (D) Nyctinasty

29. Conjoint, collateral, open and endarch vascular bundles are found in—(A) Dicot root (B) Dicot stem(C) Monocot root

(D) Monocot stem

30. Spraying of DDT produces pollution of—(A) Air only (B) Airal water(C) Air and soil (D) Air, water and soil

31. The ‘first codon’ discovered by Nirenberg and Matthaei was—(A) AAU (B) GGG(C) CCC (D) UUU

32. The smallest unit of genetic material capable of undergoing mutation is—(A) Cistron (B) Muton(C) Recon (D) Proton

33. The least number of t RNA molecules for each of the twenty amino acids found inprotein is—(A) One (B) Two(C) Three (D) Four

34. Which of the following, plants is commonly known as ‘redwood’ ?(A) Sequoia sempervirens(B) Dacridium laxifolium(C) Sequoia giganteum(D) Polygalia hirsute

35. Epidermal tissue forms the outer protective covering of a herbaceous plant. It is modified in—(A) Leaves (B) Stems(C) Roots (D) All of the above

36. PCR based markers have been developed to—(A) Create terminate codon(B) Manufacture antibiotics(C) Differentiate different biotypes of gall midge(D) Obtain soil micro-organisms with the help of specific enzyme—reductase

37. The function of a root cap is to—(A) Produce embryonic cell(B) Protect the root apical meristem from damage

(C) Absorb minerals(D) Absorb water

38. In a certain dicotyledonous stem the vascular cambium is a meristematic tissue referred to as—(A) Apical (B) Lateral(C) Intercalary (D) Secondary

39. In the phosphorus cycle, weathering makes phosphate available first to—(A) Producers(B) Consumers(C) Tertiary consumers(D) Decomposers

40. Petaloid staminode is seen in genus—(A) Cassia (B) Canna(C) Solanum (D) All of the above

41. A recessive pair of alleles at one locus sometimes prevents the expression of a dominant allele at another locus. This expression is termed as—(A) Pleiotropy(B) Polygenic inheritance(C) Complementary gene(D) Epistasis

42. Floridean starch is found in—(A) Cyanophyceae (B) Chlorophyceae(C) Myxophyceae (D) Rhodophyceae

43. Feathery stigma is present in—(A) Ceasalpinia(B) Pisum sativum(C) Datura stramonium(D) Triticum aestivum

44. Maximum transpiration occurs through/ from—(A) Ground tissue of scale leaf(B) Protoderm and procambium(C) Periderm and lenticels(D) Dermal tissue

45. Separation of components of a mixture based on their differential movements is called—(A) Plasmolysis

(B) Dialysis(C) Osmosis(D) Chromatography

46. The free energy in breaking down of glucose into CO2 and H2O is—(A) Negative and exergonic(B) Positive and exergonic(C) Negative and endergonic(D) Positive and endergonic

47. A pome fruit is said to be false because—(A) The fruit is present in fleshy edible thalamus(B) The endocarp is cartilaginous(C) The pericarp is inconspicuous(D) The fruit is derived from inferior ovary

48. If mendel had studied the 7 traits using a plant with 12 chromosomes instead of 14 in what way would the interpretations have been different ?(A) He would not have discovered the law of independent assortment(B) He would have mapped the chromosome(C) He would have discovered blending o r incomplete dominance(D) He would have discovered sex linkage

49. Enzymes are absent in—(A) Fungi (B) Cyanobacteria(C) Viruses (D) Algae

50. Length of one turn of the helix in a B-formDNA is approximately—(A) 2 nm (B) 20 nm(C) 0•34 nm (D) 3•4 nm

Answers with Explanation1. (D)2. (A) Auxin’s concentration toward nonilluminated side is greater than illuminated side. Thus, it shows phototropism. Auxin also shows geotropism in seed-ling, where due to gravitation it accumulates in the lower region of plumule or shoot.3. (D) The first case of polyembryony was reported in certain orange seeds by Antoni Van Leeuwenhoek.4. (D) The sol, under certain conditions, may change into another form called gel, the process being called gelation. When a gel is converted into sol, the process is called solation. When the change from sol into gel is reversible the colloid is called reversible.5. (C) Nuclear spindle consists of three types of fibres—interzonal, continuous and discontinuous.6. (A) m-RNA carries a message from DNA in the nucleus to the ribosomes in the cytoplasm.

7. (C) The imbibition theory of ascent of sap was first suggested by R. A. Fischer and supported by Sachs.8. (A) 9. (C) 10. (A) 11. (D)12. (D) 13. (A) 14. (D) 15. (D) The electron microscopic studies have revealed that in photosynthetic bacteria and blue-green algae some distinct lamellar structures meant for photosynthesis occur in protoplasm. These pigmented lamellae are named as chromatophores by Schmitz (1882).16. (A) Phytotron—In glasshouses (green houses) when plants are kept on artificial light and temperature, the method is called phytotron and is applicable in tissue culture, horticulture and agriculture.17. (D) The activity of cambium is often periodical, and as a result, distinct growth layers are formed in the xylem. In transverse view these growth layers appear as rings, and hence are referred to as growth rings or annual rings.18. (B) The assimilatory power i.e., NADPH2 and ATP are formed in light or Hill’s reaction. They are utilized in the dark reaction or Blackmann’s reaction of photosynthesis in reducing CO2 to carbohydrates.19. (C)20. (C) In the stomata of apophysis of capsule only stomatal pores are reported (i.e., without guard cells). Guard-cell-lacking stomata are said to be primitive.21. (A) 22. (B)23. (B) Heterochromatin is a dark staining region which contains genetically inert or late replicating genes.24. (D) 25. (A)26. (B) Pinus is a member of gymnosperms and its endosperm develops before fertilization. Hence it is haploid and, therefore, there will be no change in its chromosome number.27. (C) In protein synthesis of prokaryotes, the initiation of polypeptide chain is always brought about by an amino acid, methionine, which is coded by AUG.28. (C) Photonasty or light-induced opening and closing of flower is seen in Oxalis.29. (B) 30. (D) 31. (D)32. (B) Muton is a unit of mutation.33. (A) 34. (A) 35. (D)36. (C) Polymerase chain reaction (PCR) based markers have been developed to differentiate different biotypes of gall midge.37. (B)38. (B) Lateral meristems are present along the lateral sides of stem and roots. Interstelarcambium ring formed by intrafascicular, interfascicular cambium and cork cambium areexamples of lateral meristem.39. (A)40. (B) Canna belongs to family Cannaceae. Petaloid staminode is characteristic of this family.41. (D)42. (D) Floridean starch is a reserve food material of algal class-Rhodophyceae.43. (D) Wheat (Triticum aestivum) belongs to family Gramineae (Poaceae) which has characteristic Feathery stigma.44. (D) 45. (D) 46. (A) 47. (A) 48. (A)49. (C) Viruses are metabolically inactive outside the host cell because they lack their own enzyme systems and protein synthesis machinery.50. (D) The length of one turn of the helix in a Bform DNA is approximately 3•4 nm. The nucleotides

are set in the planes at the right angles to the axis of the helix and spaced at an intervals of 3•4 A° or 0•34 nm

General Science Zoology Questions

1. Bruch’s membrane is found in—(A) Inner ear(B) Uvea of eye(C) Testes(D) Pancreas

2. Which part of brain allows one side of brain to control opposite side of body ?(A) Midbrain (B) Medulla(C) Cerebellum (D) Pons

3. Fetuin is found in—(A) Foetus (B) Liver(C) Spleen (D) None of these

4. Hensen’s body is associated with—(A) Retina of eye (B) Organ of Corti(C) Heart (D) Skin

5. Sensory receptor of warmth located principally at the lip of fingers is known as—(A) Ruffini’s corpuscles(B) Organ of Zuckerkandl(C) Organ of Giraldes(D) Weber’s organ

6. Which of the following is basic amino acid ?(A) Alanine (B) Aspartic acid(C) Asparagine (D) Arginine

7. Which of the following amino acid is sulphurbearing compound ?(A) Methionine (B) Alanine

(C) Aspartic acid (D) Arginine

8. Negri bodies are associated with—(A) Rabies (B) Typhoid(C) Tuberclosis (D) Hepatitis

9. Schultze’s bundle is associated with—(A) Brain (B) Spinal cord(C) Heart (D) None of these

10. Schlemm’s canal is present in—(A) Eye (B) Cochlea(C) Spinal cord (D) Vertebrae

11. Capsule of Tenon is associated with—(A) Eyeball (B) Brain(C) Skin (D) Kidney

12. Which of the following law is associated with the fact that anterior spinal nerve roots contain only motor fibres and posterior roots only sensory fibres ?(A) Magendie’s law (B) Bell’s law(C) Both (A) and (B) (D) None of these

13. In birds—(A) Left oviduct and right aortic arch are present(B) Left oviduct and left aortic arch are present(C) Right oviduct, left ovary and right aortic arch are present(D) Left oviduct, left ovary and right aortic arch are present

14. Ancestral amphibians were tetrapods that evolved during—(A) Devonian period(B) Carboniferous period(C) Jurassic period(D) Cretaceous period

15. Community health services involves—(A) Control of communicable diseases

(B) School and health education(C) Awareness of clean environment(D) All the above

16. The active rolling over of endodermal and mesodermal cells from the embryo surface into the interior is defined as—(A) Ingression (B) Involution(C) Epiboly (D) Inversion

17. The wall of heart is made up of—(A) Epicardium (B) Myocardium(C) Endocardium (D) All the above

18. Genetic counsellors can identify heterozygous individuals by—(A) Height of individual(B) Colour of individual(C) Screening procedures(D) All the above

19. Which of the following enzyme is secreted by intestinal mucosa that remain closely associated with the microvilli ?(A) Peptidase (B) Disaccharidase(C) Trypsin (D) Both (A) and (B)

20. Which of the following is absorbed by intestinal mucosa by active transport ?(A) Galactose (B) Glucose(C) Fructose (D) Both (A) and (B)

21. A starving person consumes first—(A) Body fats (B) Body proteins(C) Vitamins (D) Stored glycogen

22. The functional unit of contractile system in striated muscle is—(A) Cross bridges (B) Sarcomeres(C) Myofibril (D) Z-band

23. Globular proteins undergo structural changes in response to extremes of pH or temperature, is called—(A) Renaturation (B) Denaturation(C) Combination (D) Both (A) and (B)

24. The study of relationships between size and shape is known as—(A) Allometry (B) Heterochrony(C) Isometry (D) Allochrony

25. A localised tumour covered by connective tissue is called—(A) Metastasis (B) Neoplasm(C) Benign tumour (D) Malignant tumour

26. Hürthle cell is associated with—(A) Thyroid gland (B) Pituitary gland(C) Adrenal gland (D) Pancreas

27. A metastatic cancerous tumour is termed ‘sarcoma’, if the disorder is in—(A) Immune system(B) Epithelial cells(C) Fibroblasts(D) Circulatory system

28. Graft between isogenic individuals is known as—(A) Syngraft (B) Allograft(C) Xenograft (D) None of these

29. The most striking example of point mutation is found in a disorder called—(A) Thalassemia(B) Nightblindness(C) Down’s syndrome(D) Sickle-cell anaemia

30. The phenomenon of ‘industrial melanism’ demonstrates—(A) Natural selection(B) Induced mutation(C) Reproductive isolation(D) Geographical isolation

31. Overproduction of which of the following neurotransmitter has been associated with the mental disorder ‘Schizophrenia’ ?(A) Acetylcholine (B) GABA(C) Dopamine (D) Serotonin

32. Milk tastes sour when kept in the open for sometime due to for-mation of—(A) Carbonic acid (B) Lactic acid(C) Citric acid (D) Malic acid

33. Red tide is caused by—(A) Protozoans (B) Corals(C) Dinoflagellates (D) All the above

34. A type of hypersensitivity to allergen in which humoral antibodies attach to mast cells and basophils, may result in circulatory shock, is called—(A) Orthopnea(B) Anaphylaxis(C) Rhinitis(D) Immunologic surveillance

35. Organisms with very high intrinsic growth rates have—(A) Long generation times(B) Short generation times(C) No courtship behaviours(D) No carrying capacity

36. Which of the following organism is iteroparous ?(A) Pacific salmon fish (B) Virus(C) Bacteria (D) Humans

37. A micromutation is—(A) Polyploidy(B) Addition of chromosome(C) Deletion of chromosome(D) Change in gene frequency

38. The limited period of sexual receptivity that occurs around the time of ovulation in allfemale mammals except humans is called—(A) Menstruation

(B) Luteinization(C) Oogenesis (D) Estrus

39. The rate and force of the heart-beat, and the secretion of digestive glands are controlled by—(A) Central nervous system(B) Spinal nerves(C) Cranial nerves(D) Autonomic nervous system

40. Glycosidic bond is broken during digestion of—(A) Protein (B) Starch(C) Lipid (D) All the above

41. Postganglionic parasympathetic fibres are—(A) Adrenergic(B) Cholinergic(C) Both (A) and (B)(D) None of these

42. In glycosuria disorder, urine contains—(A) Amino acid (B) Inorganic ions(C) Glucose (D) Epithelial cells

43. Mammillary bodies are attached to the ventral side of—(A) Olfactory lobe(B) Cerebral hemisphere(C) Diencephalon(D) Medulla oblongata

44. Argentaffin cells are associated with—(A) Tumour (B) Heart muscle(C) Pericardium (D) Pelvis of kidney

45. Sweating on palm and sole due to psychic stimuli is called—(A) Bradykinin (B) Blushing(C) Cold sweat (D) None of these

46. Inherited Rh gene is found in—(A) Rh+ individuals

(B) Rh– individuals(C) AB blood group individuals(D) O blood group individuals

47. The ‘soft spot’ on the top of an infant’s skull is called—(A) Suture (B) Fontanel(C) Ligament (D) Fascia

48. Concentration of carbonic acid does not increase in blood due to the presence of—(A) Na+ (B) K+(C) Ca++ (D) Mg++

49. Staph food poisoning is related with—(A) Salmonella bacteria(B) Clostridium bacteria(C) Staphylococcus bacteria(D) None of these

50. Capacitation is—(A) Final stage in maturation of spermatozoa(B) Final stage in fertilization(C) Maturation of ovum(D) All of these

Answers with Hints1. (B) Bruch’s membrane is a glassy membrane of the uvea of eye lying between the choroids membrane and the pigmented epithelium of the retina. It is also known as lamina basalis of the choroid or vitreous lamella.2. (B) Medulla contains ascending sensory and descending motor nerves, and contains site where major motor nerves cross to opposite side of nervous system, allowing one side of brain to control opposite side of body.3. (A) Fetuin is a type of globulin found in foetus and is required for the cell proliferationand growth of foetus. 4. (B) Hensen’s body is modified Golgi net found in the hair cells of the Organ of Corti.5. (A) Ruffini’s corpuscles are encapsulated sensory nerve endings found in subcutaneoustissue of finger tips and thought to mediate sense of warmth.6. (D) Arginine is crystalline basic amino acid obtained from decomposition of vegetabletissues, protamines and proteins. 7. (A)8. (A) Negri bodies are very minute bodies formed in nerve cells of the brain of one affected by rabies.9. (B) Schultze’s bundle is commashaped path of fibres in middle of spinal cord’s fasciculus cuneatus.10. (A) Schlemm’s canal is space or series of spaces at the junction of the sclera and the cornea of the eye into which aqueous humor is drained from the anterior chamber through

the pectinate villi.11. (A) Capsule of Tenon is a thin fibrous sac enveloping the eyeball, forming a socket inwhich it rotates.12. (C) 13. (B)14. (B) Carboniferous was the recent period of the Palaeozoic, some 355–280 million years ago. It was characterized by the evolution amphibians on swampy land, a few primitive early reptiles and giant ferns.15. (D)16. (B) Involution is rolling over of cells during gastrulation from the surface towards interior of the developing gastrula.17. (D) Heart’s wall possesses three layers, i.e., the outer epicardium (serous layer), the middle myocardium (cardiac muscle), and the inner endocardium. Endocardium lines the four chambers of the heart and covers the valves. 18. (C) Carriers of genetic disorders (those heterozygous for the condition, but who do not themselves exhibit it) can be diagnosed through screening procedures during geneticcounselling.19. (D) The epithelial cells of the intestinal mucose manufacture and secrete peptidase and disaccharidase digestive enzymes. They are not released into the lumen of the intestine but remain closely associated with the microvilli of the epithelial cells.20. (D) The glucose and galactose enter intestinal mucosa by active transport, while fructose enters by facilitated diffusion.21. (D) The liver stores glycogen to fulfil body’s requirement of glucose for energy during starvation.22. (B)23. (B) Changes occurring to molecules of globular proteins and nucleic acid in solution in response to extremes of pH or temperature is called denaturation.24. (A) Allometry is the study of relationship between size and shape. Organisms do not grow isometrically, rather proportions change as size changes.25. (C)26. (A) Hürthle cell is benign or malignant tumour of the thyroid gland. The cells are large and acidophilic.27. (C) Sarcomas are cancer of connective tissues. Fibroblast is the characteristic cell type of vertebrate connective tissue.28. (A) Syngraft is also known as isograft. It is a kind of grafting between isogenic individuals such as identical twins.29. (D) Point mutations involve minor changes in the genetic material, often single base-pair substitution. Sickle-cell anaemia is genetically determined disorder, caused by homozygosity, producing a single amino acid substitution in the b-chain of the normal haemoglobin molecule. 30. (A) Industrial melanism provides one of the best examples of evolution within species and of natural selection.31. (C) Dopamine is a neurotransmitter whose low concentration produces symptoms of Parkinson’s disease and over production causes Schizophrenia.32. (B) Lactic acid is a carboxylic acid, formed in metabolism of many bacteria. In milk, lactose is converted into lactic acid by metabolic activities of bacteria. Lactic acidgives sour taste to milk. 33. (C) Red tide is reddish discolouration of coastal surface waters due to concentrations of certain toxin producing dinoflagellates.34. (B) Anaphylaxis is a type of hypersensitivity resulting due to interaction of humoral antibodies with mast cells and basophils.

35. (B) 36. (D)37. (D) Mutations which are large and conspicuous are called macromutations and those very inconspicuous are called micromutation. Change in the genic frequency is the constituent of microevolution.38. (D) Estrus is the cyclic period of sexual activity in non human female mammals, characterized by congestion of and secretion by the uterine mucosa. During estrus the animal is said to be ‘in heat’.39. (D) 40. (B)41. (B) Cholinergic fibres include all preganglionic fibres, all postganglionic parasympathetic fibres, which liberate acetylcholine at their nerve endings.42. (C)43. (C) A pair of small rounded bodies, the mammillary bodies lie behind the infundi-bulum in Diencephalon.44. (A) Argentaffinoma is tumour, having argentaffin cells.45. (C) 46. (A)47. (B) In a newborn infant, the bones of the skull are still developing and these are relatively wide spaces between them. The spaces contain tough sheets of connective tissue that connect the bones and are called fontanels.48. (A)49. (C) Staph food poisoning, once known as ptomaine poisoning, results from toxins produced by Staphylococcus bacteria growing on food.50. (A) Capacitation is the final stage in maturation of mammalian spermatozoa, withoutwhich they cannot engage in fertilization.

1. Heparin is secreted by—(A) Fibroblasts(B) Mast cells(C) Plasmocytes(D) Adipocytes

2. Interdependent genes with related functions, form—(A) A coadapted gene complex(B) An inversion(C) A fitness set(D) A super mutation

3. Which of the following animal has rhabditiform larva in its life cycle ?(A) Ascaris(B) Liverfluke(C) Hydra(D) Taenia

4. Which of the following Mollusc is cultured in water for producing pearls in India ?(A) Pinctada(B) Heliotis(C) Anodonta(D) Mytilus

5. Enzymes promote chemical reaction by—

(A) Reducing the activation energies(B) Causing the release of heat which acts as a primer(C) Increasing molecular motion(D) Changing the free energy difference between substrate and product

6. The modification of hind pair of wings into halteres is the characteristic of—(A) Lepidoptera(B) Orthoptera(C) Hemiptera(D) Diptera

7. A molecule of ATP is structurally similar to a molecule of—(A) RNA molecule(B) DNA molecule(C) Amino acid(D) Fatty acid

8. Class Trematoda belongs to the phylum—(A) Platyhelminthes(B) Arthropoda(C) Mollusca(D) Annelida

9. Albinism is caused due to lack of production of—(A) Tyrosine 3-monooxygenase(B) Homogentisic acid oxidase(C) Thiamine pyrophosphate(D) Phenylalanine hydroxylase

10. Maximum power of division is found in the skin layer—(A) Stratum granulosum(B) Stratum malpighi(C) Stratum spinosum(D) Stratum corneum

11. Tube feet are characteristic of—(A) Star fish(B) Cuttle fish(C) Cray fish(D) Jelly fish

12. Which of the following is egg laying mammal ?(A) Pangolin(B) Porcupine(C) Tachyglossus(D) Bat

13. Acetylcholine is responsible for transmission of nerve impulses through—

(A) Dendrites(B) Axons(C) Cytons(D) Synapses

14. Loss of ability to speak due to defect of vocal organs, is called—(A) Alalia(B) Alaorina(C) Alate(D) Albidus

15. Termination of amino acid chain requires codons—(A) UAG, UAA, UGA(B) UUU, GGU, UGG(C) GUG, UGG, AUG(D) UGG, GGG, AUG

16. ‘A tube within a tube’ body plan is met within—(A) Hydra(B) Plannaria(C) Ascaris(D) Fasciola

17. The parts of neurons that perform basic cellular functions, such as protein synthesis, are the—(A) Somas(B) Axons(C) Dendrites(D) Synaptic knobs

18. Lewy bodies are found in—(A) Brain(B) Plasma(C) Lymph(D) Kidneys

19. A hormone that stimulates the secretion of pancreatic secretions to neutralize the acid chyme from the stomach, is—(A) Insulin(B) Secretin(C) Oxytocin(D) Glucagon

20. Which of the following pair is correctly matched ?(A) Excessive perspiration—Xeric adaptation(B) Parasitism—Interspecific relationship(C) Uricotelism—Aquatic habitat(D) Streamline body—Aquatic adaptation

21. Cross bridges, which connect the molecules of a fibril during muscle contraction, are made of—(A) Actin(B) Collagen(C) Myosin(D) Creatine phosphate

22. Muscles of alimentary canal are chiefly—(A) Striated and neurogenic(B) Unstriated and neurogenic(C) Striated and myogenic(D) Unstriated and myogenic

23. The photosensitive parts of rod cells are made up of—(A) Rhodopsin(B) Myelin(C) Keratin(D) Actin

24. The protein which maintains the muscular storage of oxygen is—(A) Myosin(B) Myoglobin(C) Actomyosin(D) All the above

25. Tiedemann’s bodies are found in—(A) Sponges(B) Hydra(C) Asterias(D) Hirudinaria

26. In a normal person at rest the cardiac output or amount of blood pumped per minute by the left ventricle is approximately—(A) 1/2 litre(B) 1 litre(C) 2 litres(D) 5 litres

27. Biogeographical regions are also called—(A) Zones(B) Realms(C) Epoch(D) Era

28. Human nerve cells develop from the embryonic—(A) Ectoderm and mesoderm(B) Endoderm(C) Ectoderm(D) Mesoderm

29. Vertebrate kidney has a following basic unit—(A) Nephron(B) Ureter(C) Malpighian tubule(D) All of the above

30. In cladistics—(A) A clad must contain the common ancestor(B) Derived characters help construct cladograms(C) Data for the cladogram is presented(D) All the above

31. Which of the following organ develops first ?(A) Liver(B) Heart(C) Notochord(D) Kidneys

32. The infective stage of malarial parasite is—(A) Metacryptozoite(B) Cryptozoite(C) Schizont(D) Sporozoite

33. The ion mainly absorbed in the distal convoluted part ofnephron—(A) Na+(B) K+(C) Mg++(D) Po4– –

34. Quadriceps and Gastronemius muscles are present in—(A) Wrist(B) Hands(C) Legs(D) Shoulder

35. FSH and LH hormones together are called—(A) Emergency hormone(B) Gonadotropic hormone(C) Neuro hormones(D) Outstress hormones

36. Shivering in severe cold is caused by—(A) Voluntary action of striated muscles(B) Voluntary action of unstriated muscles(C) Involuntary action of striated muscles

(D) Involuntary action of unstriated muscles

37. Hypocalcemia is caused due to under secretion of—(A) Thyroxine(B) Paratharmone(C) Testosterone(D) Glucagon

38. The emergency hormone in humans is—(A) Thyroxine(B) Adrenaline(C) Insulin(D) Progesterone

39. Polio immunising vaccine was developed by—(A) E. Jenner(B) Dr. Salk(C) St. Hale(D) Landsteiner

40. In mammals which organ acts as blood bank ?(A) Heart(B) Lung(C) Liver(D) Spleen

41. Structure involved in Addison’s disease is—(A) Adrenal cortex(B) Adrenal medulla(C) Pituitary(D) Thyroid

42. Biceps and Triceps surround—(A) Radius(B) Ulna(C) Humerus(D) Femur

43. Chemical nature of insulin is—(A) Steroid(B) Lipid(C) Protein(D) Carbohdyrate

44. Which of these is present in human buccal cavity ?(A) Ptyalin(B) Trypsin(C) Lipase

(D) Pepsin

45. Outermost covering of brain is—(A) Choroid(B) Arachnoid(C) Duramater(D) All of these

46. The application of genetic principles for the improvement of mankind is—(A) Genetic engineering(B) Biotechnology(C) Eugenics(D) Anthropology

47. Cockroach and other insects possess an—(A) Open type vascular system(B) Closed type vascular system(C) No vascular system(D) Both (A) and (B)

48. Ganglioside is found in—(A) Nerve(B) Smooth muscles(C) Carolia muscles(D) Liver cells

49. ‘Metachrosis’ is found in—(A) Mammals(B) Amphibians(C) Birds(D) All of these

50. Healthy parents with normal height gave birth to a achondroplasia (dwarf) child. This is due to—(A) Spontaneous mutation(B) Point mutation(C) Induced mutation(D) None of these

Answers with Hints1. (B) Mast cells secrete heparin, a proteoglycan, which is an anticoagulant.2. (A)3. (A) After gastrulation, a juvenile is formed in Ascaris. It is 0•2 mm long and having close with Rhabditis, a nematode found in the soil and human faeces. The rhabditoid larva of the first stage is not infective.4. (A) 5. (A) 6. (D) 7. (A) 8. (A)9. (A) The persons with recessive aa genes do not produce the tyrosine 3-monooxygenase which is needed by melanocytes for converting DOPA (3, 4-dihydroxyphenylalanine) into melanin (a dark brown pigment).

10. (B) 11. (A) 12. (C) 13. (D)14. (A)15. (A) 16. (C) 17. (A)18. (A) Lewy bodies are neuronal cells with pigmented inclusion bodies. They are found in brain in the substantia nigra and locus ceruleus.19. (B) 20. (D) 21. (C)22. (B) Muscles of alimentary canal are smooth unstriated and are innervated by fibres of ANS. These muscles are neurogenic.23. (A) The photosensitive part of rod and cone cells are their outer segments. In rods, this part contains a shining pigment called rhodopsin or visual purple. Like haemoglobin, rhodopsin is a compound of a protein (= opsin or scotopsin) and a pigment (retinene).24. (B)25. (C) Tiedemann’s bodies are small rounded, yellowish glandular sacs opening into the ring canal on its inner side. There is one Tiedemann’s body between each radius and inner radius except in one such position where the stone canals enters the ring canal.26. (D) 27. (B) 28. (C) 29. (A)30. (D) The cladistic school analyses primitive and derived characters and construct cladograms on the basis of shared derived characters. A clad is a common ancestor and all the species derived from that common ancestor. Cladograms are diagrams based on objective data.31. (C) 32. (D) 33. (A) 34. (C) 35. (B)36. (C) Shivering is due to increased involuntary striated muscle activity in response to excessive cold.37. (B) When there is undersecretion of paratharmone, the level of calcium in ECF falls (hypocalcemia), and that of phosphate rises. Such a condition is responsible for neuromuscular hyperexcitability.38. (B) 39. (B) 40. (D) 41. (A) 42. (C)43. (C) 44. (A) 45. (C) 46. (C) 47. (A)48. (A) 49. (B)50. (A) The child’s achondroplasia arose from de novo mutation in either his mother’s or father’s gamete. Such a spontaneous mutation usually originates as a DNA replication error.

1. T8 cells are related with—(A) Helper T cells(B) Cytotoxic T cells(C) Suppressor T cell(D) None of the above

2. In humans, which brain wave pattern disappears entirely during sleep ?(A) Alpha waves(B) Beta waves(C) Theta waves(D) Delta waves

3. Which of the following is lymphatic system related disease ?(A) Hodgkin’s disease(B) Multiple myeloma(C) Chronic lymphocytic leukaemia(D) All the above

4. Hodgkin’s disease is associated with—(A) Lymphocytes(B) Leucocytes(C) Erythrocytes(D) All the above

5. In humans, which side of cerebral hemisphere recognises the faces of friends and family members ?(A) Left cerebral hemisphere(B) Right cerebral hemisphere(C) Both (A) and (B)(D) None of the above

6. Honey that has a high concentration of sugar, does not decay because—(A) It contains natural antioxidant that prevent bacterial attack(B) Bacteria cannot survive in an active state in a solution of high osmotic strength, as water is drawn out from honey(C) In honey bacteria are totally deprived of oxygen(D) None of the above

7. Prosoma in scorpion comprises—(A) Head(B) Head and thorax(C) Head, thorax and abdomen(D) Only abdomen

8. What causes Pituitary Nanism ?(A) Hyposecretion of Adrenocorticotrophic hormone(B) Hypersecretion of Adrenocorticotrophic hormone(C) Hyposecretion of Somatotrophic hormone(D) Hypersecretion of Somatotrophic hormome

9. Which of the following is ironstoring protein ?(A) Alpha glubulin(B) Gamma glubulin(C) Ferritin(D) Albumins

10. Red tide is caused by—(A) Protozoans(B) Corals(C) Dinoflagellates(D) All the above

11. The major constituent of vertebrate bone is—(A) Calcium phosphate(B) Calcium carbonate(C) Sodium chloride(D) Potassium hydroxide

12. Find the odd one out—(A) Guineaworm(B) Hookworm(C) Ringworm(D) Tapeworm

13. Taste buds located on tongue, are example of—(A) Interoreceptors(B) Exteroreceptors(C) Teloreceptors(D) Phonoreceptors

14. Body cells infected with virus produce a protein called—(A) Interferon(B) Properdin(C) Gamma globulin(D) Hybridoma

15. Capacitation of sperm in mammals involves—(A) Sperm size change(B) Acrosome reaction(C) Nuclear chromatin change(D) Mitochondrial alignment

16. Marfan syndrome is inherited as an autosomal dominant abnormality of—(A) Eyes(B) Cardiovascular system(C) Skeletal system(D) All the above

17. The cytoplasmic segment of striated muscle fibre is termed—(A) Metamere(B) Neuromere(C) Sarcoplasm(D) Sarcomere

18. Which one of the following is pandemic disease ?(A) Amoebic dysentery(B) Hepatitis(C) Filariasis(D) Influenza

19. Corpus striatum is found in—(A) Paracoel(B) Diocoel(C) Metacoel(D) Cerebral hemisphere

20. The polio virus enters the body through—(A) Mosquito bites(B) Tick bites(C) Contaminated food and water(D) Saliva and secretion from the nose

21. Products of adenine and guanine metabolism are excreted by humans as—(A) Ammonia(B) Urea(C) Uric acid(D) Allantoin

22. The rate and force of the heartbeat, the secretion of digestive glands are controlled by the—(A) Central nervous system(B) Spinal nerves(C) Cranial nerves(D) Autonomic nervous system

23. The extra embryonic membranes of mammalian embryo are derived from—(A) Inner cell mass(B) Trophoblast(C) Formative cells(D) Follicle cells

24. People who live at high altitudes have rosy cheeks because—(A) Haemoglobin has an increased binding affinity for oxygen(B) RBCs and haemoglobin concentration becomes considerably above the average in response to lowered oxygen pressure(C) Rate of capillary circulation increases in the skin(D) All the above

25. Which of the following animal belongs to phylum Mollusca ?(A) Globe fish(B) Star fish(C) Silver fish(D) Cuttle fish

26. Milk teeth in a child of 3-4 years do not include—(A) Incisors(B) Canines(C) Molars(D) Premolars

27. Which of the following is the only poisonous lizard of the world ?(A) Ophiosaurus(B) Varanus(C) Heloderma

(D) Draco

28. Wharton’s duct in man is related to—(A) Male genital organs(B) Brunner’s gland(C) Submandibular salivary gland(D) All the above

29. The secretions from which of the following glands form ootheca in cockroach ?(A) Colleterial glands(B) Mushroom glands(C) Phallic glands(D) Spermatheca

30. Sensory cells that occur in the pits or canals of lateral line system of fishes are—(A) Neurochrome(B) Neuroglia(C) Neuromast(D) None of the above

31. The thickening of wall of artery is called—(A) Aneurysm(B) Arteriosclerosis(C) Arthritis(D) Both (A) and (C)

32. Lining of human intestine is—(A) Ciliated(B) Keratinized(C) Brush border(D) All the above

33. Which blood group has both 'a' and 'b' antibodies ?(A) O(B) AB(C) A(D) B

34. Glycosidic bond is broken during digestion of—(A) Protein(B) Starch(C) Lipid(D) All of these

35. Passive food ingestion in Amoeba is known as—(A) Invagination(B) Import(C) Circumfluence

(D) Circumvallation

36. In gout patients, high level of one of the following is found in blood—(A) Urea(B) Uric acid(C) Cholesterol(D) All the above

37. The anion present in pancreatic juice is—(A) Chloride(B) Bromide(C) Phosphate(D) Bicarbonate

38. Preganglionic sympathetic fibres are—(A) Adrenergic(B) Cholinergic(C) Both (A) and (B)(D) None of these

39. The muscles associated with the heart of insects are—(A) Radial(B) Alary(C) Striped(D) Pericardial

40. The goblet cells present in the intestinal lining are—(A) Holocrine(B) Merocrine(C) Apocrine(D) Endocrine

41. Chaga’s disease is caused by—(A) Trypanosoma gambiense(B) Trypanosoma cruzi(C) Trypanosoma bruci(D) None of the above

42. A chemical process common in the digestion of all kinds of food is—(A) Condensation(B) Hydrolysis(C) Phosphorylation(D) Emulsification

43. The muscles present on the posterior aspect of thigh that flex the leg and adduct and extend the thigh in human are—(A) Semitendinosus(B) Semimembranosus

(C) Biceps femoris(D) All the above

44. The P-wave of the electrocardiogram is associated with—(A) Contraction of atria(B) Depolarization of atrial muscular tissues(C) Contraction of ventricles(D) Repolarization of S–A node

45. Septicemia is—(A) Food poisoning(B) Blood poisoning(C) Mental disorder(D) None of the above

46. Which of the following stops the action of acetylcholine ?(A) Acetylcholinesterase(B) Acetylcoenzyme-A(C) Acetylcysteine(D) Acetyltransferase

47. In mammalian heart, the pulmonary is powered by—(A) Right atrium and right ventricle(B) Left atrium and right ventricle(C) Only right ventricle(D) Only left ventricle

48. Dartos tunic muscle fibres occur in—(A) Uterine wall(B) Urethral wall(C) Abdominal wall(D) Scrotal wall

49. Which of these muscles help urinary bladder to expel urine forcefully ?(A) Detrusor muscle(B) Latissimus dorsi(C) Hamstring muscle(D) None of the above

50. During embryonic development in humans, morula is enclosed by—(A) Corona radiata(B) Zona pellucida(C) Both (A) and (B)(D) None of the above

Answers with Hints1. (B) When a T cell with a CD8 protein on its surface encounters a MHC protein with a nonself antigen, the CD8 cell is activated to produce a clone of cells called cytotoxic T cells, which are also

called T8 or killer cells.2. (A) There are four characteristic brain wave patterns. Alpha waves are recorded from calm, resting conditions. It disappears entirely during sleep.3. (D)4. (A) Hodgkin’s disease is malignancy of lymphocyte tissue, characterized by masses of abnormal lymphocytes.5. (B) Visual patterns, the shapes of objects and their locations in space are interpreted by right side of the brain. With the right hemisphere humans appreciate the context of an event and recognise the faces of friends and family members.6. (B) 7. (B)8. (C) Pituitary Nanism is another term for dwarfism or ateliosis and is due to hyposecretion of somatotrophic hormone.9. (C) Ferritin is iron storing protein, especially in spleen, liver and bone marrow. The iron is made available when required for haemoglobin synthesis, being transferred by transferrin.10. (C) Red tide is reddish discolouration of costal surface waters due to concentrations of certain toxin-producing dinoflagellates.11. (A) Bone is a hard connective tissue that makes up most of the skeleton of vertebrates. The matrix is 30% protein (collagen) and 70% inorganic matter, mainly calcium phosphate.12. (C) Guineaworm, Hookworm and Tapeworm are endoparasite, while ringworm is a skin disease caused by fungus.13. (B)14. (A) Interferons are proteins produced by viral infected body cells and some lymphocytes, often in response to presence of doublestranded RNA in the cell.15. (B) Capacitation is final stage in maturation of mammalian spermatozoa, without which they cannot engage in fertilization. Substances secreted by the ovary or by the uterine lining, must be encountered for the sperm to undergo the acrosome reaction.16. (D) Marfan syndrome is autosomal dominant abnormalities of the eyes, cardiovascular system and the skeletal system. Most persons suffering from the disease have myopia, elongated eyeballs, long and narrow extremities (spider fingers) and irregular body proportions.17. (C) The protoplasm of the fibres of striated muscle, excluding the myofibrils, is called sarcoplasm.18. (D)19. (D) Corpus striatum is a structure in the cerebral hemispheres consisting of two basal ganglia (the caudate and lentiform nuclei) and the fibres of the internal capsule that separate them.20. (C)21. (C) As a result of nucleic acid digestion, nitrogenous organic acid bases–purines (adenine and guanine) and pyrimidines (cytocine, thymine and uracil) are absorbed from intestine into the blood. In humans, purines are changed into uric acid for excretion.22. (D) Autonomic nervous system supplies motor nerves to the smooth muscles of the gut and internal organs and to heart muscle. It comprises the sympathetic nervous system, which when stimulated increases heart rate, breathing rate and blood pressure and slows down digestive processes, and the parasympathetic nervous system slows heart rate and promotes digestion.23. (B) Trophoblast is epithelium, surrounding the mammalian blastocyst, forming outer layer and becoming part of extra embryonic membranes.24. (B) At high altitudes, the composition of air remains the same as at sea level but the density of air gradually decreases. Therefore, people living at high attitudes are acclimatized to high altitude conditions due to a significant increase in RBC count and haemoglobin content in blood.25. (D)26. (C) In humans all teeth, except adult molars, grow twice in life. There are 20 milk teeth in child,

that does not include 12 molar teeth.27. (C) Heloderma is the only poisonous lizard of the world and commonly called gila monster.28. (C) Wharton’s duct is the duct of the submandibular salivary gland, opening into the mouth at the side of the frenum linguae.29. (A) The left collecterial gland secretes a soluble milky protein, while the right one secretes watery dihydroxyphenol. Both secretions combine to form a scleroprotein which forms a common egg-case, celled ootheca.30. (C) Neuromast is one of numerous groups of sensory cells that occur in pits or canals along the lateral line system in fishes.31. (B) Arteriosclerosis is the disease of arteries in which the wall of arteries become thickened and rigid, and blood flow is hindered.32. (C) Brush border is the outer surface of columnar epithelial cells living the human intestine.33. (A) Humans having ‘O’ group blood, have no blood group antigens, but possess both ‘a’ and ‘b’ antibodies.34. (B)35. (B) Import is the method which involves taking of food on contact of food. The food passively sinks into the body of Amoeba by rupturing the plasmalemma and ectoplasm at the point of contact.36. (B) 37. (D)38. (B) Preganglionic sympathetic fibres are cholinergic and release acetylcholine from its ending when stimulated.39. (B)40. (B) Goblets cells are merocrine (epicrine) in nature.41. (B) 42. (B)43. (D) Hamstrings are three muscles on the posterior aspect of the thigh, semitendinosus, semimembranous and bicep femoris. They flex the leg, adduct and extend thigh.44. (B) Electrocardiogram is a record of the electrical activity of the heart, shows certain waves called P, Q, R, S, and T waves. The Pwave is caused by the depolarization of the atrial muscle tissues.45. (B) Blood poisoning is a common name for an infection of the blood that is also called septicemia or toxemia.46. (A) Acetylcholinesterase is an enzyme that stops the action of acetylcholine. It is present in various body tissues.47. (A)48. (D) Dartos tunic is the muscular contractile tissue beneath the skin of the scrotum.49. (A) The bladder wall contains three layers of smooth muscle, which together are called the detrusor muscle. Contraction of the detrusor muscle help expel urine forcefully from the bladder.50. (B) The morula reaches uterus about 4 to 6 days after fertilization. It is still surrounded by the zona pellucida, that prevents its sticking to the uterine wall.