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BIOLOGY – Assignment

Chapter : Living World & Biological Classification

1. Which of the following is less general in characters as compared to genus?

1) Species 2) Division 3) Class 4) Family

2. Mixotrophic mode of nutrition is a characteristic of which group?

1) Diatoms 2) Euglenoids 3) Desmids 4) Dinoflagellates

3. Find correct sequence of sexual cycle in Agaricus w.r.t. following terms.

a. Karyogamy b. Meiosis c. Plasmogamy d. Dikaryotic phase

1) c, d, a, b 2) c, a, b, d 3) d, c, b, a 4) a, b, c, d

4. Group of organisms that closely resemble each other and freely interbreed in nature, constitute a

1) Species 2) Genus 3) Family 4) Taxon

5. a. Asexual reproduction is commonly through the formation of conidia in ascomycetes.

b. Sexual spores are exogenous, stalked and diploid in ascomycetes.

c. Fruiting body is called ascocarp in sac fungi. 1) a & b are incorrect 2) b & c are incorrect 3) a & c are correct 4) b & c are correct

6. Which of the following statements regarding growth is false?

1) Increase in mass and increase in number of individuals are twin characterics of growth.

2) In plants, growth by cell division is seen only upto a certain stage.

3) Growth exhibited by non-living objects is by accumulation of material on the surface.

4) A multicellular organism grows by cell division.

7. A plant differs from an animal mainly in 1) Protoplasm 2) Vital activities 3) Nutrition 4) Reproduction

8. Binomial nomenclature means that every organism has

1) Two names one scientific and other popular 2) One scientific name consisting of a generic

name and specific epithet 3) One name given by two scientists 4) Two names, one latinized and other of the

person

9. The sum total of chemical reactions occurring in our body is called

1) Metabolism 2) Homeostasis 3) Irritability 4) Catabolism

10. Match the items in column I with those in column II and choose the correct option

Column I Column II

A Ascus (i) Spirulina

B Basidium (ii) Penicillium

C Protista (iii) Agaricus

D Cyanobacteria (iv) Euglena

E Animalia (v) Sponges

1) A – (ii), B – (iii), C – (iv), D – (v) E – (i) 2) A – (i), B – (ii), C – (iii), D – (v) E – (iv) 3) A – (ii), B – (v), C – (iii), D – (i) E – (iv) 4) A – (ii), B – (iii), C – (iv), D – (i) E – (v)

11. Which of the following is the defining feature of all the living organisms?

1) Growth 2) Metabolism 3) Reproduction 4) Self consciousness

12. Which one of the following is a saprophytic protist? 1) Desmid 2) Slime mould 3) Euglena 4) Gonyaulax

13. Biological organisation starts with 1) Cellular level 2) Organism level 3) Atomic level 4) Sub-microscopic molecular level

EXCEL ACADAMICS - Bangalore 2 Biology Assignment

EXCEL ACADAMICS – Bangalore. The Premier Institute for NEET/IIT-JEE/CET/AIIMS/JIPMER

14. Identify the following figures A, B and C.

A B C

1) A – Euglena, B – Paramecium, C – Agaricus 2) A – Euglena, B – Planaria, C – Agaricus 3) A – Planaria, B – Paramecium, C – Agaricus 4) A – Euglena, B – Paramecium, C – Aspergillus

15. Find out the correct statement. 1) In lichens, the algal component is called

phycobiont and fungal component is known as mycobiont, which are heterotrophic and autotrophic respectively.

2) Viroid contains RNA of low molecular weight and protein coat.

3) A virus contains both RNA and DNA. 4) Viruses are obligatory parasites. 16. Identify the correct sequence of taxonomic categories 1) Species-order-kingdom-phylum 2) Species-family -genus-class 3) Genus-species -order -phylum 4) Species -genus-order-phylum

17. Who is known as 'Father of Taxonomy'? 1) Huxley 2) Linnaeus 3) Theophrastus 4) None of these

18. Naming of crop plant species is determined by 1) International union of biologists 2) International code for Botanical Nomenclature

(ICBN) 3) International association of plant breeders 4) International code of nomenclature of cultivated

plants

19. The term systematics is derived from Latin word ‘Systema’ which means

1) Classification of organisms 2) Nomenclature of organisms 3) Diversity of organisms along with ontogeny 4) Systematic arrangement of organisms

20. Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?

1) Taxonomic key 2) Flora 3) Herbarium 4) Monograph

21. The correct series of procedure in scope of taxonomy

1) Classification, nomenclature, identification, characterisation

2) Nomenclature, identification, classification, characterisation

3) Characterisation, identification, classification, nomenclature

4) Characterisation, identification, nomenclature, classification

22. Which one of the following is correct as per binomial nomenclature?

1) Mangifera Indica L. 2) Mangiferaindica Linn. 3) Mangifera indica L. 4) Mangifera Indica Linn.

23. Given below is the diagram of a dividing bacterium. In which of the following option (1 – 4) all parts labelled as A, B and C are identified correctly?

1) A – ss DNA; B – Cell wall; C – Glycocalyx 2) A – ds DNA; B – Cell wall; C – Cell membrane 3) A – DNA; B – Cell membrane; C – Cell wall 4) A – Circular DNA; B – Plasma membrane;

C – Cellulosic cell wall

24. Which of the following pair of characters unexceptionally present in all living organisms and absent in non-living objects?

1) Consciousness, reproduction 2) Metabolism, cellular organisation 3) Growth, reproduction 4) Reproduction, metabolism

25. Match the column I with column II Column I Column II

A Indian Botanical Garden (i) Lucknow B Royal Botanical Garden (ii) Italy C National Botanical Research

Institute (iii) Howrah

D Villa Taranto (iv) Kew 1) A – (iii), B – (ii), C – (i), D – (iv) 2) A – (i), B – (iv), C – (iii), D – (ii) 3) A – (ii), B – (iv), C – (iii), D – (i) 4) A – (iii), B – (iv), C – (i), D – (ii)

26. Organisms with heterotrophic nutrition, multicellular body organisation with loose tissue are placed under which kingdom of Whittaker’s system?

1) Monera 2) Protista 3) Fungi 4) None of these



27. Which one of the taxonomical aids is useful in providing information for identification of names of species found in an area?

1) Flora 2) Manual 3) Monograph 4) Catalogue

28. The number of species that are known and described ranges between

1) 1 – 1.02 million species 2) 1.7 – 1.8 million species 3) 0.2 – 0.5 million species 4) 1 – 1.5 million species

29. Isolated metabolic reactions in-vitro are 1) Living things but not living reactions 2) Neither living things nor living reactions 3) Biological reactions as they involve

biochemicals 4) Biological reactions as they do not involve

enzymes

30. Which of the following group does not represent the aggregates of closely related families?

1) Carnivora 2) Polymoniales 3) Primata 4) Felidae

31. Lion, leopard and tiger represents 1) Same species 2) Different subspecies of same species 3) Different species of same genus 4) Different species of different genera

32. Taxonomical studies of all known organisms have led to the development of hierarchy involving _____ obligate categories

1) 7 2) 5 3) 4 4) 3

33. Which of the following organisms represent taxa at different levels?

1) Mammals, Insects 2) Plants, Animals 3) Wheat, Plants 4) Dogs, Cats

34. Cyanobacteria are 1) Bacteria using cyanide for nutrition 2) Coloured fungi 3) Algae having blue-green cells 4) Viruses affecting bacterial growth 35. Which of the following cell organelle is absent in

bacterial cell 1) Ribosome 2) Cell membrane 3) Golgi complex 4) Mesosome

36. The classification of Linnaeus was mainly based on 1) Sepals 2) Carpels 3) Petals 4) Stamens

37. Choose the correct names of the different bacteria according to their shapes.

A B C D

1) A – Cocci, B – Bacilli, C – Spirilla, D – Vibrio 2) A – Bacilli, B – Cocci, C – Spirilla, D – Vibrio 3) A – Spirilla, B – Bacilli, C – Cocci, D – Vibrio 4) A – Spirilla, B – Vibrio, C – Cocci, D – Bacilli

38. Which pair of the following belongs to Basidiomycetes? 1) Puffballs and Claviceps 2) Peziza and Alternaria 3) Mucor and mushrooms 4) Mushrooms and puffballs

39. The figure given below shows the structure of a bacteriophage. Identify its parts labelled as A, B, C and D.

A B C D

1) Tail fibres

Head Sheath Collar

2) Sheath Collar Head Tail fibres 3) Head Sheath Collar Tail fibres 4) Collar Tail

fibres Head Sheath

40. Consider the following statements. (i) Genus comprises a group of related species. (ii) Taxon represents a taxonomic group of

individual organisms. (iii) Family comprises a group of related genera (iv) Taxonomic category class includes related orders. Of the above statements 1) (i), (ii), and (iv) are correct 2) (ii) and (iv) are correct 3) (i), (iii) and (iv) are correct 4) (ii), (iii) and (iv) are correct



41. Which of the following is not a character of protista?

1) Protists are prokaryotic 2) Some protists have cell walls. 3) Mode of nutrition is both autotrophic and

heterotrophic 4) Membrane bound organelles are present in

cells

42. Specialized cells called heterocysts are present in 1) Dinoflagellates 2) Chrysophytes 3) Euglenoids 4) Cyanobacteria

43. Which of the following is a flagellated protozoan? 1) Amoeba 2) Entamoeba 3) Plasmodium 4) Trypanosoma

44. The phylogenetic system of classification was put forth by

1) Carolus Linnaeus 2) George Bentham and Joseph Dalton Hooker 3) Theophrastus 4) Adolf Engler and Karl Prantl

45. Mycorrhiza is helpful to Pinus in 1) Synthesis of food 2) Getting nutrients and water from soil 3) Providing resistance against different

regulators 4) Increasing the fertility of soil

46. Which of the following option is correct? I. Mycoplasma has no cell wall. II. Mycoplasma is the smallest living organism. III. Mycoplasma cannot survive without O2. IV. Mycoplasma are pathogenic in animals and

plants. V. True sexuality is not found in bacteria. VI. A sort of sexual reproduction occurs in

bacterium by adopting a primitive DNA transfer from one bacterium to the other.

1) All 2) Only III 3) I, II, IV, V and VI 4) I, III and VI

47. Taxonomic key is based on the contrasting characters generally in a pair and its each statement is called

1) Monograph 2) Grade 3) Couplet 4) Lead

48. Which one of the following is a characteristic feature of Chrysophytes?

1) They are parasitic forms which cause diseases in animals

2) They have a protein rich layer called pellicle 3) They have indestructible wall layer deposited

with silica 4) They are commonly called dinoflagellates

49. In Whittaker’s system of classification, prokaryotes belong to the kingdom

1) Monera 2) Protista 3) Animalia 4) Fungi

50. Select the correct taxonomic aids given in column I with their feature given in columns II.

Column I Column II A Herbarium (i) Includes those specimens which

can be easily classified on their observable characters.

B Botanical garden

(ii) Preserved specimens on sheets become a store house for future use.

C Museum (iii) Generally set up in educational institutes.

D Zoological Park

(iv) Includes those animals which are identified based on their aggregates of characters.

E Key (v) All animals provided similar conditions to their natural habitat.

(vi) Includes animals of related orders.

(vii) Includes collection of living plants for reference.

(viii) It identifies animals and plants on the basis of their similarities and dissimilarities.

1) A – (i), B – (ii), C – (viii), D – (v), E – (iii) 2) A – (iii), B – (i), C – (iv), D – (ii), E – (v) 3) A – (ii), B – (vii), C – (iii), D – (v), E – (viii) 4) A – (ii), B – (iii), C – (vii), D – (i), E – (iv)

51. In prokaryotes, chromatophores are 1) Specialised granules responsible for

colouration of cells 2) Structures responsible for organising the shape

of the organism 3) Inclusion bodies lying free inside the cells for

carrying out various metabolic activities 4) Internal membrane systems that may become

extensive and complex in photosynthetic bacteria

52. Most common mode of reproduction in bacteria is by

1) Binary fission 2) Sporulation 3) Budding 4) Genetic recombination

53. Consider the following statements with respect to characteristic features of the kingdom.

A. In animalia the mode of nutrition is autotrophic. B. In monera the nuclear membrane is present. C. In protista the cell type is prokaryotic. D. In plantae the cell wall is present. of the above statements 1) A alone is correct 2) B alone is correct 3) C alone is correct 4) D alone is correct



54. Study the following statements I. Unicellular, colonial, filamentous, marine or

terrestrial forms II. The colonies are surrounded by a gelatinous

sheath III. Some can fix atmospheric nitrogen in

specialised cells called heterocysts IV. They often form blooms in water bodies These above characters are seen in 1) Archaebacteria 2) Cyanobacteria 3) Chrysophytes 4) Dinoflagellates

55. Identify the given figure and match its correct characteristics.

1) Zoological Park - A place where plants were

kept under human care. 2) Museum - Includes collection of preserved

plants and animal specimens. 3) Herbarium - Store house where plant specimen

are collected, dried, pressed and preserved on sheets.

4) Botanical garden - Plants specimens are collected, preserved along with labeling indicating its scientific name.

56. Mesosomes are found in 1) Yeast 2) Acetabularia 3) Bacteria 4) Chara

57. Match column I with Column II and choose the correct option.

Column I Column II A Ernst Mayr (i) Discovered viroids B Whittaker (ii) Gave the name virus C Pasteur (iii) Proposed Five Kingdom

classification D Diener (iv) Darwin of the 20th century

1) A – (iv), B – (iii), C – (ii), D – (i) 2) A – (iii), B – (iv), C – (ii), D – (i) 3) A – (ii), B – (iii), C – (iv), D – (i) 4) A – (i), B – (ii), C – (iii), D – (iv)

58. Nuclear material without nuclear membrane, is observed in

1) Bacteria and cyanobacteria 2) Cyanobacteria and red algae 3) Bacteria and green algae 4) Mycoplasma and green algae

59. Chemosynthetic bacteria 1) Oxidise various organic substances 2) Are most abundant in nature 3) Oxidise substances like nitrites, ammonia, iron

etc. 4) Reduce various inorganic substances

60. Pick out the wrong statement 1) Lichens are symbiotic associations. 2) Lichens are very good pollution indicators. 3) Lichens do not grow in unpolluted areas. 4) The algal component of lichen is known as

phycobiont.

61. An example for artificial system of classification 1) Bentham and Hooker 2) Bessey 3) Linnaeus system 4) Hutchinson

62. Which of the following are the characters of dinoflagellates?

A. Planktonic golden yellow algae with soap box like structure.

B. Marine red biflagellated protistans. C. Appear yellow, green, brown, blue and red in

colour. D. Biflagellated organisms with pellicle. E. Saprophytic (or) parasitic unicellular forms. 1) A, B and C only 2) B, D and E only 3) B and C only 4) B and E only

63. Reproduction is commonly asexual which occurs through cell division and resulting in red tide formation by

1) Gonyaulax 2) Ceratium 3) Euglenoids 4) Slime moulds

64. Site of respiration in Bacteria is 1) Mesosomes 2) Vacuole 3) Nucleoid 4) Mitochondria

65. Diatoms are used in brewing industry because 1) Its mode of nutrition is holophytic 2) Its cell wall has two halves 3) Its cell wall has rough and gritty nature 4) Of presence of leucosin as reserve food

66. Instead of cell wall, euglenoids have a protein rich layer called _______, which makes their body ____.

1) Glycocalyx, flexible 2) Pellicle, flexible 3) Theca, rigid 4) Frustule, rigid



67. Which one of the following option is correct?

1) A – Cell wall, B – Cell membrane, C –

Heterocyst, D – DNA, E – Mucilagenous sheath

2) A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilagenous sheath

3) A – Mucilagenous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall

4) A – Cell membrane, B – Cell wall, C – DNA, D – Heterocyst, E – Mucilagenous sheath

68. Fungi imperfecti shows 1) Septate mycelium 2) Prolonged diakaryophase 3) Zoospore formation 4) Advance sex organs

69. Archaebacteria differ from other bacteria in having 1) Double stranded DNA 2) A different cell wall structure 3) Autotrophic mode of nutrition 4) Nuclear membrane

70. Mycoplasma are organisms that completely lack 1) Nuclear membrane as well as plasma

membrane 2) Cell wall and cell membrane 3) Plasma membrane and flagella 4) Cell wall and can survive without oxygen

71. Reproduction also cannot be an all inclusive property of living organisms because

1) Yeast and Hydra multiply by fragmentation 2) Protonema of moss multiplies by binary

fission 3) It is synonymous to growth in unicellular

organisms 4) Some organisms like worker bees and mules

are interfertile

72. The basic unit of classification is 1) Species 2) Genus 3) Family 4) Phylum

73. Which of the following criteria for five kingdom classification was not used by Whittaker?

1) Mode of nutrition 2) Reproduction 3) Pigmentation 4) Thallus organisation

74. The characteristic photosynthetic pigments present in blue green algae are

1) Chlorophyll–a, phycocyanin and phycoerythrin 2) Chlorophyll - a and chlorophyll - b 3) Chlorophyll - b and phycobilins 4) Chlorophyll - b, phycoerythrin and carotenes

75. Viroids a. Discovered by T.O. Diener b. Are low molecular weight RNA molecules c. Are causal entities of tobacco mosaic disease d. Are free RNA particles lacking protein coat 1) a, b & d are correct 2) a, c & d are correct 3) a, b & c are correct 4) All are correct

76. In classification system given by Whittaker, kingdom protista includes

1) All photosynthetic unicelled organisms 2) All saprozoic unicelled organisms 3) All holozoic unicelled organisms 4) Nutritionally diverse unicelled organisms

77. Phosphate absorption is the major function of 1) Actinomycetes 2) Lichens 3) Mycorrhiza 4) Spirochaetes

78. In members of deuteromycetes, asexual reproduction often occurs by

1) Basidia 2) Sporangiospores 3) Conidia 4) Zoospores

79. In class basidiomycetes, the site of karyogamy and meiosis is

1) Basidiospore 2) Zygospore 3) Oospore 4) Basidium

80. Statement 1: Taxon and category are different things.

Statement 2: Category shows hierarchical classification.

1) Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1

2) Statement -1 and Statement -2 are true; statement-2 is not a correct explanation for statement - 1

3) Statement - 1 is true and statement- 2 is false 4) Both the statements are false.

81. Which one of the following taxonomic category of hierarchy will have more specific and general characters respectively?

a. Class b. Family c. Genus d. Order e. Species 1) e & d 2) c & a 3) e & b 4) e & a

A

B

C



82. Find incorrect statements w.r.t. slime moulds a. Spore dispersal by wind b. Somatic body and spores, both are wall-less c. Mostly parasitic d. Unicellular eukaryotes 1) a, d 2) a, c 3) b, c 4) c, d

83. Match the following and choose the correct combination from the options given.

Column I (Common name)

Column II (Taxonomic category,

Order) A Wheat (i) Primata B Mango (ii) Diptera C Housefly (iii) Sapindales D Man (iv) Poales

1) A – (i) B – (ii) C – (iv) D – (iii) 2) A – (iv) B – (iii) C – (ii) D – (i) 3) A – (ii) B – (iv) C – (i) D – (iii) 4) A – (iii) B – (iv) C – (ii) D – (i)

84. Chief producers in the oceans are 1) Dinoflagellates 2) Diatoms 3) Euglenoids 4) Pyrrophytes

85. Identify the labels A and B in the figure given below

1) A – ss DNA; B – Head 2) A – ds RNA; B – Capsid 3) A – ss RNA; B – Capsid 4) A – ss DNA; B – Capsid

86. Potato spindle tuber disease is caused by

1) Virus 2) Virusoid 3) Virion 4) Viroid

87. Select the correct statement among the following 1) All organisms have self–consciousness 2) Human beings are the only organisms who are

self–conscious 3) Metabolic reactions cannot be demonstrated

outside the body in cell–free systems 4) Prokaryotes cannot sense and respond to

environmental cues

88. Which among the following are incapable of reproduction?

1) Mules 2) Worker bees 3) Slime moulds 4) Mules & worker bees

89. Which one of the following fungi is extensively used in biochemical and genetical research?

1) Yeast 2) Penicillium 3) Neurospora 4) Mucor

90. The following are twelve members of fungi Mucor, Rhizopus, Albugo, Alternaria,

Colletotrichum, Agaricus, Aspergillus, Ustilago, Neurospora, Puccinia, Claviceps and Trichoderma

Select the option in which the twelve members are distributed correctly to the four groups of fungi

Phycomycetes

Ascomycetes

Basidiomycetes

Deuteromycetes

1) 4 3 3 2 2) 3 4 2 3 3) 3 3 3 3 4) 2 4 3 3

ANSWER KEY 1. (1) 11. (2) 21. (3) 31. (3) 41. (1) 51. (4) 61. (3) 71. (4) 81. (3)

2. (2) 12. (2) 22. (3) 32. (1) 42. (4) 52. (1) 62. (3) 72. (1) 82. (3)

3. (1) 13. (4) 23. (3) 33. (2) 43. (4) 53. (4) 63. (1) 73. (3) 83. (2)

4. (1) 14. (1) 24. (2) 34. (3) 44. (4) 54. (2) 64. (1) 74. (1) 84. (2)

5. (3) 15. (4) 25. (4) 35. (3) 45. (2) 55. (3) 65. (3) 75. (1) 85. (3)

6. (2) 16. (4) 26. (3) 36. (4) 46. (3) 56. (3) 66. (2) 76. (4) 86. (4)

7. (3) 17. (2) 27. (2) 37. (1) 47. (4) 57. (1) 67. (2) 77. (3) 87. (2)

8. (2) 18. (2) 28. (2) 38. (4) 48. (3) 58. (1) 68. (1) 78. (3) 88. (4)

9. (1) 19. (4) 29. (3) 39. (3) 49. (1) 59. (3) 69. (2) 79. (4) 89. (3)

10. (4) 20. (4) 30. (4) 40. (3) 50. (3) 60. (3) 70. (4) 80. (1) 90. (3)

B

A



HINTS AND SOLUTIONS 1. Answer: (1) Sol. Species are group of organisms having most

common characters 2. Answer: (2) Sol. Mixotrophic nutrition means organism which

exhibits both Autotrophic & Heterotrophic mode of nutrition.

3. Answer: (1) Sol. Fusion of protoplasms of 2 gametes is called

plasmogamy which is followed by dikaryotic phase. Fusion of nuclei is called karyogamy and the disposal cells undergo meiosis and product haploid spores.

4. Answer: (1) Sol. A group of individual organisms with fundamental

similarities with each other and freely interbreed among themselves are called species

5. Answer: (3) Sol. Asexual spores are conidia produced exogenously

on the special mycelium called conidiophores. Sexual spores are ascospores produced endogenously in sac like asci arranged in fruiting body called Ascocarp.

6. Answer: (2) Sol. In plants, growth by cell division is seen throughout

their life span 7. Answer: (3) Sol. All animals are heterotrophic in nutrition where all

plants except very little (insectivorous plants and cuscuta) are autotrophic in nutrition

8. Answer: (2) Sol. According to Binomial nomenclature every

organism has one scientific name consisting of two components the genetic name and the specific epithet

9. Answer: (1) Sol. There are thousands of chemical

reactions/metabolic reactions occurs simultaneously inside all living organisms. The sum total of all the chemical reactions occurring living organisms is called metabolism

10. Answer: (4) Sol. i. During sexual reproductions of pencillium it

produces ascospores inside the sac like structure called ascus

ii. Im agaricus Basidiospores are produced in Basidium

iii. Euglena is a unicellular eukaryotes belongs to protista kingdom

iv. Spirulina is protein rich blue green algae v. Sponges are multicellular, eukaryotic,

heterotrophic organisms belongs to kingdom animalia

11. Answer: (2) Sol. All living things made up of number of chemicals.

These chemicals are constantly being made and changed to other biomolecules. These are called chemical reactions/metabolic reactions constitute metabolism. All living things must show metabolism in order to lead life. That’s why it is a defining characteristic of living organisms

12. Answer: (2) Sol. Slime proceeds slides over twigs and leaves and

engulf the organic material from them 13. Answer: (4) Sol. In living things different molecules forms organelles

and organelles gives organs, organs to organ system, organ system to organisms are developed

14. Answer: (1) Sol. i. Euglena having two flagella one is short and

another one is long. There is an invagination is at anterior end having cytostome, cytopharynx and reservoir. Photosensitive pigments/eye spot is present at the side of reservoir

ii. Paramecium is a ciliated slipper shaped protozoan

iii. Agericus having clubshaped fruiting body called basidiocarp

15. Answer: (4) Sol. Viruses are always infectious parasitous on other

organisms 16. Answer: (4) Sol. Taxonomical categories are arranged in hierarchal

manner from species to kingdom like Species → Genus → Family → Order → Class →

Phylum/Division → Kingdom 17. Answer: (2) Sol. Linnaeus proposed binomial nomenclature and two

kingdom classification. He did much work in taxonomy. That’s why he was popularly known as father of taxonomy

18. Answer: (2) Sol. Scientific names have been standardized through

ICBN 19. Answer: (4) Sol. Systematics takes into account evolutionary

relationships between organisms. 20. Answer: (4) Sol. Monographs contains information on any one taxon 21. Answer: (3) Sol. The main scope of taxonomy is characterization,

identification, classification, nomenclature. 22. Answer: (3) Sol. In Binomial nomenclature, name of the author

appears after specific epithet in an abbreviated form

Eg : -Mangifera indica Linn 23. Answer: (3) Sol. Bacteria are prokaryotic organisms having rigid cell

wall, plasma membrane and freely floating genetic material (ds DNA) in the cytoplasm

24. Answer: (2) Sol. All living things must have cellular organization and

show metabolic activities which gives life. But non living ones cannot

25. Answer: (4) Sol. Botanical gardens have collections of living plants

for reference 26. Answer: (3) Sol. Fungi are Achlorophyllous plants.



27. Answer: (2) Sol. Flora provide the index to the plant species found

in a particular area. 28. Answer: (2) Sol. The number of species that are known and

described range in between 1.7 to 1.8 million species this refers to Biodiversity

29. Answer: (3) Sol. Isolated metabolic reactions in vitro are not living

things but surely living reactions (Biological reactions) 30. Answer: (4) Sol. Aggregates of closely related families forms

another higher category called order Eg: Carnivora, polymoniales and primate Felidae is a family not order 31. Answer: (3) Sol. Genus represents a group of related species for

example lion (panthero lio), leopard (P.pandrus), and tiger (P.tigris) with several common features are all species of the genus panthera

32. Answer: (1) Sol. Classification involves hierarchy of steps each step

is called category. There are seven(7) obligatory category like species, genes family, order, class, phylum/division, kingdom are present in taxonomic hierarchy

33. Answer: (2) Sol. Plants and animals represents taxa at different

levels 34. Answer: (3) Sol. Cyanobacteria also referred to as blue green algae

having blue green cells 35. Answer: (3) Sol. Bacteria are prokaryotic cells not having membrane

bound organelles like E.R.M.C, Golgi complex lysosomes, chloroplasts etc

36. Answer: (4) Sol. The classification of Linnaeus is mainly based on

androecium structure. It comes under artificial system of classification

37. Answer: (1) Sol. Bacteria divided into four groups like cocci, bacilli,

vibrio and spirillum bases on the shape they have 38. Answer: (4) Sol. Members of Basidiomycetes are called club fungi. It

includes mushrooms, bracket fungi, puff balls etc 39. Answer: (3) Sol. Virus which attacks bacterium is called

bacteriophage 40. Answer: (3) Sol. All the taxonomical categories are arranged in

hierarchal manner in ascending order from species to kingdoms

41. Answer: (1) Sol. All protistans are unicellular eukaryotes 42. Answer: (4) Sol. Specialized thick walled cells present in the

cyanobacteria are called heterocysts. These cells are involved in nitrogen fixation

43. Answer: (4) Sol. Trypanosome is flagellated protozoan belongs to

protista kingdom. It is a parasite causes African sleeping sickness in humans

44. Answer: (4) Sol. Phylogenetic system of classification is based on

evolutionary relationship between the organisms classifications of Adolf engler and karl prantil comes under phylogenetic system

45. Answer: (2) Sol. Fungal association with the roots of higher plants

like pinus is called mycorrhiza. It help the plants to get nutrients and water from soil

46. Answer: (3) Sol. All unicellular prokaryotes kept under kingdom

monera. Monerans are divided into different groups like archaebacteria, Eubacteria, mycoplasma, Actinomycetes

47. Answer: (4) Sol. Key’s are the taxonomical aids which separates the

organisms based on similarities and dissimilarities 48. Answer: (3) Sol. Chrysophytes are one among the other classes of

protista. It includes diatoms and desmids 49. Answer: (1) Sol. In 1969, R.H. Whittaker proposed a meaningful

widely accepted five kingdom classification. According to this all organisms are divided into 5 kingdoms. Monera, protista, fungi, plantae and animalia

50. Answer: (3) Sol. Taxonomical aids are used to identify and to

classify the organisms in a meaningful way 51. Answer: (4) Sol. The membranous extensions into the cytoplasm of

cyanobacteria are chromatophores which have pigments

52. Answer: (1) Sol. In favourable conditions bacteria can reproduce by

binary fission 53. Answer: (4) Sol. According to whittaker’s classification. All

organisms are divided in to five kingdoms 54. Answer: (2) Sol. Moneran’s are divided into archaebacteria,

eubacteria, mycoplasma and actinomycetes 55. Answer: (3) Sol. Taxonomical aids are used for the identification and

classification organisms which include herbarium, Botanical gardens, museums, zoological parks, keys etc

56. Answer: (3) Sol. In bacteria plasma membrane is folded to form a

mesosomes, which are involved in respiration 57. Answer: (1) Sol. Pasteur coined the term virus which means venom

or Poison 58. Answer: (1) Sol. Generally prokaryotic cells have not having nuclear

membrane and membrane bound organelles 59. Answer: (3) Sol. Chemosynthetic bacteria derive energy by oxidizing

inorganic nutrients like nitrities, NH3, Iron etc 60. Answer: (3) Sol. Symbiotic association of algae and fungi forms

lichens. In lichens algal component called phycobiont and fungal component is mycobiont



61. Answer: (3) Sol. Linnaeus classification of plants depends upon the

structure of androecium. It comes under artificial system of classification

62. Answer: (3) Sol. Dinoflagellates are one among the other protistans.

They appear in different colors like yellow, green, red blue depending upon the pigments they have

63. Answer: (1) Sol. Gonyaulax are red dinoflagellates hence they make

the sea appear red. Even toxins released by them kill other marine animals.

64. Answer: (1) Sol. Mesosomes are special membranous structure

which is formed by the extensions of plasma membrane into the bacterial cell. They contain various respiratory enzymes.

65. Answer: (3) Sol. Diatom cell wall is composed of silica due to this its

gritty, helps in filtration of oils and syrups. 66. Answer: (2) Sol. Pellicle is not rigid like cell wall. 67. Answer: (2) Sol. Bacteria are prokaryotes having cell wall, cell

membrane and genetic material but no nuclear membrane and membrane bound organelles

68. Answer: (1) Sol. All fungi except phycomycetes have branched and

septate mycelium 69. Answer: (2) Sol. Archaebacteria can survive in harsh on viton

means due to the presence of branched chain fatty acid in their cell membrane. Cell wall is composed of pseudomurein.

70. Answer: (4) Sol. Mycoplasma lacks the cell wall and pleomorphic 71. Answer: (4) Sol. Growth and reproduction are not definite characters

of living things 72. Answer: (1) Sol. The basic unit of classification species 73. Answer: (3) Sol. Whittaker classify all the organisms into five

kingdoms based on mode of nutrition, reproduction, thallus organization etc

74. Answer: (1) Sol. Blue–green algae have chlorophyll a similar to

green plants. 75. Answer: (1) Sol. Viroids causes potato spindle tuber disease, having

low molecular weight RNA only 76. Answer: (4) Sol. All unicellular eukaryotes kept under kingdom

protista

77. Answer: (3) Sol. Mycorhiza is the association of fungi with roots of

higher plants like pinus helps in the absorption of nutrients and water

78. Answer: (3) Sol. Deuteromycetes are the imperfect fungi having no

sexual reproduction 79. Answer: (4) Sol. In Basidiomycetes karyogamy and meiosis takes

place in Basidium 80. Answer: (1) Sol. Classification is based on the number of step each

step in the classification is called category or taxon 81. Answer: (3) Sol. Taxonomical hierarchy is in ascending order from

species to kingdom 82. Answer: (3) Sol. Slime moulds are protistans, in which the multi

nucleated protoplasm is covered by plasma membrane

83. Answer: (2) Sol. Wheat – Poales Mango – Sapindals Housefly – Diptera Man – Primata 84. Answer: (2) Sol. Diatoms are photosynthetic ones and acting as

chief producers in oceans 85. Answer: (3) Sol. Tobacco mosaic virus is a single stranded RNA

virus covered by protein sheath called capsid. 86. Answer: (4) Sol. Viroids are infectious ones having low molecular

weight RNA causing potato spindle tuber disease observed by T.O. Diener

87. Answer: (2) Sol. Animal have conscious about surroundings but not

have self consciousness 88. Answer: (4) Sol. Reproduction is not a definite character of living

things why because some of the living ones like mules, worker bees, infertile couple (human) cannot reproduce

89. Answer: (3) Sol. Neurospora belongs to Ascomycetous fungi used

extensively in bio-chemical and genetical research 90. Answer: (3) Sol. Phcomycetes. Eg. Mucor, Rhizopus, Albugo Ascomycetes. Eg. Aspergillus, Neuro spora,

Claviceps Basidiomycetes. Eg. Agaricus, Ustilago, Puccinia Deuteromycetes. Eg. Alternaria, Colletrotrichum,

Trichoderma

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