exam 3 questions & answers

8/14/2019 Exam 3 Questions & Answers

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CHAPTER 5:

1. Which of the following is a functionperforming by the skeleton?

A. Storage of mineralsB. Storage of fat

C. Protection

D. All of the above

E. None of the above

Ans: D

2. The appendicular skeleton includes

A. Shoulders

B. Pelvis

C. Arms

D. Legs

E. All of the above

Ans: E

3. The skull... bones of a human newbornare not fused, but are instead connected byfibrous connective tissue.

True

False

Ans: Ture

4. Painful damage to a ligament iscalled____.

A) break

B) Osteoporosis

C) Fragment

d) Sprain

e) Rapture

answer is D

5. How many bones are in the HumanBody?

A) 33

B) 206

c) 639

D) it varies in the individual

answer is b

6. Which of these is not part of the axialskeleton?

a) skull

b) vertebral column

c) sternum and r...ib cage

d) pectoral girdle

answer is D

7. What is the appendicular skeletons mainpurpose?

a) to support


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b) to protect

c) to allow movement

d) nothing in particular

e) to stay stiff

answer is C

8. Which one is the structural unit ofcompact bone?

A. Periosteum

B. Osteocytes

C. Central canal

D. Bone marrow

E. Osteon

Answer: E

9. What are fontanels?

A. The small bones of the hand

B. Pads of fibrocartilage that help cushionthe bones of the vertebral column

C. Fibrous connective tissue that connectsthe bones of the cranium before and shortlyafter birth

D. The light-absorbing pigments in thephotoreceptors called Rods

E. Inverse agonists at the benzodiazepine

receptor

Answer: C

10. Bones function in

A. Support

B. Movement

C. Protection

D. Storage of Minerals and Fat

E. All of the above

Answer: E

11. What are tendons?

A. Bands of connective tissue that attachbone to bone

B. Cartilage disks

C. Bands of muscle

D. Bands of connective tissue that attachmuscle to bone

E. Bones in the foot

Answer: D

12. Which of the following is NOT aprimary function of the framework of bonesand cartilage known as the skeleton?

A) Support

B) Movement

C) Protection

D) Hormone production

E) Storage of minerals

D is the correct answer

13.Yellow Marrow is?

A) A fatty tissue used for energy storage?

B) A plate that seperates each end of th...ebone from its shaft


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C) Joint Inflammation

D) A series of bones through which thespinal cord passes

E) A framework of bones and cartilage that

performs functions for the body

A is the correct answer

14. There are ________________ thoracicvertebrae

A. 12

B. 7

C. 2

D. 1

E. 26

Answer is A.

15. What is the biggest factor in regulatingbone growth?

A. Nutrition and food intake

B. Genes

C. Hormones

D. Cells

E. Osteocytes

C is the correct answer

16. The "scapula" is also commonly class:

a. collarbone

b. shoulder blade

c. forearm bone

d. wrist bone

e. thighbone

ANSWER B

17. What is the term for mature bone cells?

A. Lacuna

B. Osteon

C. Osteocytes

D. Marrow

E. Periosteum

ANSWER C

18. About 20 million Americans, most ofthem elderly white women, suffer from whatdisease?

A.... Herpes

B. Erythrocytism

C. Anorexia

D. Osteoporosis

E. AIDS

ANSWER D

19. Arthritis refers to :

A. Arm and leg pain only

B. Joint Inflammation

C. A torn ligament

D. the irreversible lose of bone


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E. All of the above

ANSWER B

CHAPTER 6:

20. About how many skeletal muscles wehave that are usually attached to bones?

A.400

B.500

C.600

D.700

E.850

Answer: D

21.what connects to the Motor neuron?

A. Myofibril

B. Sacroplasmic

C. Acetylcholine

D. Tubele

Answer: C

22.Which two muscles you are u...sing whenflexing or extending your arm?

A. biceps and triceps

B.biceps and rectus

C.rectus and triceps

D.pectoralis and rectus

Answer: A

23. What are the parts of a Neuron?

A. Dendrites

B. Cell Body

C. Axon

D. All of the above

Answer: D

24. The strength of muscle contractionsdepend on the number of _______ unitsinvolved.

A. Neuron

B. Skeletal

C. Motor

D. Tendon

Answer: C

25. What causes flexion?

A. The biceps contracts and pulls theforearm up, fl...exing the arm.

B. The relaxed triceps is stretched.

C. The triceps contracts and pulls theforearm down, extending the arm.

D. The relaxed biceps is stretched.


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E. A and B

Answer: E

26. Which of the following are traits ofmuscles?

A. Muscles are excitable

B. Muscles are contractible

C. Mucles are extensible

D. Muscles are elastic

E. All of the above

Answer: E

27. After prolonged exercise, all of thefollowing occur EXCEPT?

A. Glucose is forme...d

B. Creatine phosphate is restored

C. Oxygen is restored to myglobin

D. Lactic acid is no longer used to produceATP

E. Glycogen reserves are restored

Answer: A

28. Characteristics of fast twitch musclesinclude all of these EXCEPT?

A. Designed for rapid, powerful response

B. Large amounts of actin and myosin

C. Fatigue rapidly

D. Packed with myoglobin

E. Depend heavily on anaerobic metabolicpathways

Answer: D

29. A ligament connects ___________?

A. Bone to muscle

B. Bone to bone

C. Skin to Muscle

D. Muscle to muscle

E. None of the above

Answer: D

30. Muscle Dystrophy causes

a) progressive muscle deterioration

b) extreme body building

c) muscle contraction

d) soreness after working out

e) all of the above

ANSWER: A

31. The 3 kinds of muscles have what incommon?

a) muscles are excitable

b) muscles are contractible

c) muscles are extensible

d) muscles are elastic

e) a...ll of the above

ANSWER: E


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b. Motor neurons

c. Interneurons

d. None of the above

e. All of the above

answer: A

39. Which is not a... benefit of exercise?

a. improving the heart

b. improving the blood vessels

c. increasing strength

d. improved mood

e. an increase in fat

answer: E

40. Unlike neurons, glial cells are able to_____.

a. reproduce

b. attack viruses

c. manage body temperature

d. undergo photosynthesis

e. all of the above

answer: A

41. This type of nerve cell is locatedbetween motor neurons and sensory

neurons, interprets signals, and is located inthe brain and spinal cord.

A) Interneuons

B) Efferent neurons

C) Impulse neurons

D) Afferent neurons

E) Schwann cells

Answer) A

42. What disease is a result of the death ofdopamine-producing neurons deep ni thebrain's movement control center?

A) Alzheimer's Disease

B) Parkinson's Disease

C) Depression

D) Hodgkin's Disease

E) Infectious Disease

Answer) B

43. A wave of changes that travels down theneuron's plasma membrane is called what?

A) Synaptic Transmission

B) Action Potential

C) Nerve Impulses

D) Resting Potential

E) Neurotransmitter

Answer) B

44. Someone who is totally unresponsive toall sensory input and cannot be awakened isin a

a) Deep sleep

b) Coma

c) Cancer state


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d) Stroke

e) Heart attack

Answer) B

45. Which of the following is not a type ofneuron?

A. Afferent

B. Efferent

C. Interneuron

D. Outerneuron

Answer: D

46. Which of the following carryinformation toward the brain and spinalcord?

a) Motor Neurons

b) Interneurons

c) Sensory Neurons

d) Effectors

e) None of the above

ANSWER C

47. What is the long extension of a neuroncalled?

A) Dendrite

B) Axon

C) Effector

D) Neurotransmitter

ANSWER B

48. What makes up the peripheral nervoussystem?

A. brain and spinal cord

B. all nervous tissue in the body, excludingthe brain and spinal cord

C. nervous tissue, brain and spinal cord

D. spinal cord

answer: B

49. nerve impulses leave the neuronthrough_____

a)dendrites

b)cell body

c) nucleus

d) axon

e) axon endings

anwser E

50. The _____ increases the rate ofconduction of nerve impulses and helps theirrepair.

A. Myelin Sheath

B. Sodium-Potassium Pumps

C. Nerve

D. Dendrites

Answer: A


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CHAPTER 8:

51. What protects the Central Nervous

System?

A) Bone and Membranes

B) Cerebrospinal fluid

C) Bone, Membranes and

Cerebrospinal fluid

D) A Brick Wall

E) None of the above

Answer C

52. What is/are characteristics of whitematter?

a) consists of myelinated axons

b) consists of interneurons, cell bodies, andunmyelinated axons

c)... allows communication between the

cerebral hemispheres

d) allows communication over long

distances

e) a & d

answer: E

53. What are the two types of matter locatedin the brain?

A) white, black

B) white, gray

C) gray, black

D) gray, brown

E) pink, yellow

answer: B

54. The cerebral hemispheres sitcomfortably over the

A) Hypothalamus

B) Thalamus

C) Primary motor area

D) Frontal Lobe

E) Dark Side of the Moon

answer: B

CHAPTER 9:55. How many bones are in the middle ear?

a.)1

b.)2

c.)3

d.)4

e.)5

answer: c

56. How many types of olfactory receptorsdo we have?

a.) about 50

b.) about 200

c.) about 1000

d.) about 20,000

e.) about 1,000,000

answer: C


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57. The pupil is located in which part of thebody?

a.) Ear

b.) Mouth

c.) Nose

d.) Eye

e.) Chest

answer: D

58. What is the lens?

A. A layer of tissue that contains thephotoreceptors

B. The colored part of the eye

C. A transparent, semispherical body oftissue behind the iris and pupil

D. The opening at the center of the iris

Answer: C

59. What is the function of the cornea?

A. Receives light

B. Controls shape of lens

C. Refracts light

D. Protects the eyeball

Answer: C

60. Which of the following is NOT astructure of the inner layer of the eye?

A. Retina

B. Rods

C. Cones

D. Fovea

E. All of the above are part of the inner layer

Answer: E

61. What are cones?

a) the photoreceptors responsible for black

and white vision.

b) the photoreceptors responsible for colorvision.

c) the layer of tissue that containsphotoreceptors.

d) the group of axons from the eye to thebrain.

Answer: B

62. cold and heat receptors detect..

a. pressure change

b. size change

c. temperature change

d. adaptation

answer: c - temperature change

63. Which of the following is NOT one ofthe five primary tastes?

A sour

B sweet


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C bitter

D hot

E salty

ANS----D

64. Which statement below is right?

A. around 20%of what we usually think ofas ...the flavor of a food is really detected byour sense of smell

B. farsightness is caused by image focusbefore retina

C. blind spot is caused by the abscence ofoptic nerve

D.a person who lacks red cones sees deepred as black

ans D

CHAPTER 21A:

65. Which of the following is a mechanismthat protects cells from cancer?

A. Limitations on the number of times a cellcan divide

B. forming a sore

C. there are no mechanisms to protect thecells

D. swollen glands

E. lumps on the skin

Answer: A

66. Which of the following is a known causeof cancer?

A. Viruses, some of which... haveoncogenes among their genes.

B. Chemicals that case mutations.

C. Radiation such as sun rays, cosmic rays,radon, and uranium.

D. All of the above are known to causecancer.

Answer D

67. GMO stands for:

A) General model operator

B) Genetically modified organism

C) genetically made organ

D) gene made organically

answer is b

68. The conventional cancer treatments

include all except:

a) surgery

b) chemotherapy

c) exercise

d) radiation


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answer C

CHAPTER 21:

69. What is the most common type of cancerfor women?

A. Lung

B. Ovary

C. Breast

D. Bladder

answer: C

70. Which is not true of DNA?

A. it is single-stranded

B. it has a sugar deoxyribose

c. it functions primarily in the nucleus

D. it contains the bases adenine, guanine,cytosine, and thymine

answer: A

71. One difference between RNA and DNAis

A. DNA is stable and RNA is not

B. RNA is stable and DNA is not

C. DNA is single-stranded

D. RNA has a sugar and DNA does not

E. They are not different

answer: A

72. What is polymerase chain reaction(PCR)?

A. A reaction that destroys the cell

B. A technique used to increase the amountof specific DNA

C. A result of cancer

D. A disease caused by liver failure

answer: B

73. The triplet code of CAT in DNA isrepresented as ___ in mRNA and ___ intRNA.

A. CAT, CAT

B. GAA, CAT

C. GTA, CAU

D. GUA, CAU

Answer: D

74. A three-base sequence on transfer RNA(tRNA) that binds to the complementarybase pairs of a codon on the mRNA is a(n)

A. .Anticodon

B. Codon

C. Polymerase

D. Promoter

Answer: A


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75. What is ...the manipulation of geneticmaterial for human purposes?

A. Biotechnology

B. Genetic Engeenering

C. Mutation

D. Transcription

Answer: B

76. What are DNA changes called?

A. Haloids

B. RNA

C. Life

D. Mutations

Answer: D

CHAPTER 22:

77. Which one in below is amacromolecule?a. proteinb. nucleic acidc. RNAd. DNAe. all of the abovethe answer is e.

78. What was a critical step in hominidevolution?1. Walking on 2 feet2. Speaking3. Creating fire4. Thinking

Answer is 1

79. Who Wrote the book "On The Origin ofSpecies"?A) Richard DawkinsB) Stephen HawkingC) Charles DarwinD) Sigmund FreudAnswer: C

80. What is the process by which someindividuals live longer and produce moreoffspring than other individuals becausetheir particular inherited characteristics

make them better suited to their localenvironment?

A, Natural SelectionB. Natural Killer cellsC. Natural childbirthD. Negative feedback mechanismanswer is A

81. What is not a major trend in HominidEvolution?

A.BipedalismB.Elongation of limbsC.Shortening of jawD.Increased brain sizeE.Reduced size between males and females

Answer (D)

82.If an individual walks on two feet whatwould this be called?A.Trilimbic

B.TripeldicularC.BipedalismD.Human likeE.Ateles geoffoyi vellerosus

Answer(C)


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83.Which is not a trait of primates?A.Flattened nailsB.Stereoscopic visionC.Forward-facing eyesD.Inflexible shoulder jointsE.Grasping forelimbs

Answer (D)

84.Sexual(fill in the blank, fill in the blank)produce variation in population?

A.reproduction, genetic responseB.reproduction, genesC.alleles,gametes

D.reproduction,mutationE.assortment,mutations

Answer(D)

85. Where was the oldest fossil evidence formodern humans found?

A.) Africa

B.) The North Pole

C.) United States of America

D.) France

E.) China

Answer: A.) Africa

86. What is/are branching diagrams used byscientists to depict hypotheses aboutevolutionary relationships among species orgroups of species?

A.) convergent e...volution

B.) molecular clocks

C.) phylogenetic trees

D.) bipedalism

E.) gene pool

Answer: C.) phylogenetic trees

87. The process by which Earth's lifeformshave changed from their

earliest beginnings to today is...

A. Evolution

B. Chemistry

C. Natural Selection

D. Geographic Distribution

E. Comparative Anatomy

Answer: A. Evolution


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CHAPTER 24:

88. If the world's population was 21birthsper 1000 individuals per year, death rate was7.2 deaths per 1000 individuals per year.

Calculate the growth rate.A.1.24%

B.1.38%

C.4%

D.1.34%

E.nona of them above

ANSWER:B

89.what are not related to depletion ofresources?

A.soil erosion

B.overfishing

C.water shortage

D.deforestation

E.none of them above

ANSWER:E

90.when we want to predict future growth,which of the following is helpful?

A.immigration

B.population dynamics

C.age structure

D.none of them above

E.all of them above

ANSWER:C

91. what are the factors that reduce the sizeof populations?

a. density-independent regulating factors

b. density-dependent regulating factors

c. density-growth regulating factors

d. both a&b

answer: d

92. An example of a density-dependentregulating factor is...

a. food scarcity

b. disease causing organisms

c. a&b

d. none ...of the above

answer: c

93. What percentage of Earth's water is inthe oceans?

a. 75%

b. 50%

c. 97%

d. 25%

answer: c

94. why are forests disappearing?


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a. human population is increasing andgetting rid of trees to have land or space andto build homes

b. because we're having too many forestfires esp. in California

c. too much oil and gasoline are consumedby the population which kills the forestplantation

d. people are carving their initials on treesand breaking branches while hiking

answer: a

95. What describes how populations canchange in size?

a) population dynamics

b) carrying capacity

c) age structure

d) global warming

correct answer: (a)

96. What is the removal of trees from anarea without replacing them?

a) deforestation

b) desertification

c) age structure

d) global warming

correct answer: (a)

97. Which of these is NOT a possibleconsequence of global warming?

a) melting ice caps

b) rising sea level

c) colder oceans

d) changing weather patterns

correct answer: (c)

98. What percentage of Earth's WaterSupply is NOT in oceans?

A:3B:40C: 50D: 13

E:50

ANSWER: A

99. The Earth's population in 2008 was:A. 3 BillionB. 4 BillionC. 5 BillionD. 6.7 BillionE. 10 Billion

ANSWER: D

100. 97% of the Earth's water is in:A. OceansB. LakesC. RiversD. SwampsE. Bogs

ANSWER: A

OTHER QUESTIONS:


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101. DNA contains all of the followingbases except:

A. Adenine

B. Guanine

C. Cytosine

D. Thymine

E. Uracil

Answer: E

102. The following is defined as an entireset of genes carried by one member of a

species.

A. Genome

B. ...Gene Therapy

C. Polymerase Chain Reaction

D. Biotechnology

E. Ribosomal RNA

Answer: A

103. DNA...

A: Is a double-stranded molecule.

B. Has a sugar deoxyribose.

C: Functions primarily in the nucleus.

D. All of the above.

E. None of the above.

Answer: D

104. Painful damage to a ligament is called a______.

A. Break

B. Osteoporosis

C. Fragment

D. Sprain

E. Rupture

Answer: D. Sprain

105.What Is the function of cornea?

A) to see

B) protect the eye

C) refracts light focusing on the retina .

D) rounded lens

E) none of the above

answer c

106. What is the inner ear?

a. hair cell

b. radiowave

c. window

d. transmitter

e. all the above

answer d

107.what is the function of the eardrum?

A) vibrates in respons...e to sound waves


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B) loudness and pitch

C) transmitting

D) d all the above


answer a

108. What is an abnormal growth of cellsthat can form a mass of tissue?

a. mole

b. pimple

c. tumor

d. hive

- answer: c. tumor

109. What is the removal and analysis of asmall piece of tissue suspected to becancerous?

a. tumor marker test

b. biopsy

c. genetic test

d. radiation

- answer: b. biopsy

110. Which of these is not a conventionalmethod for treating cancer?

a. showering

b. surgery

c. radiation

d. chemotherapy

- answer: a. showering

111. Which nervous system regulatesinvountary bodily activities, such asbreathing rate and heart rate?

a. Central Nervous System

b. Somatic Nervous System

c. Autonomic Nervous System

d. Parasympathetic Nervous System

e. Sympathetic Nervous System

112. The answer is c. Autonomic NervousSystem

The hypothalamus controls...

A.) heart rat...e

B.) blood pressure

C.) breathing rate

D.) body temperature

E.) all of the above

Answer: E

113. Which part of the brain is the largest?

A.)temporal lobe

b.)parietal Lobe


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c.)Cerebrum

d.)Occipital lobe

e.)Major Lobe

Answer-C

114. Glial Cells:

a.) support neurons

b.) protect neurons

c.) Insulate neurons

D.) Nuture neurons

E.) All of the above

Answer: E

115. Neurons that are sent to the brain are:

a.) Afferent

b.) efferent

c.) Interneurons

d.) deterrent

e.) none of the above

Answer: A

116. All of these are components of neuronsEXCEPT:

a.) Dendrites

b.) Cell Body

c.) cilia

d.) Axones

e.) All of these are components of neurons

Answer: C

117. Action Potential occurs when:

a.) ions are forced through ion channels

b.) ions move passively through ionchannels

c.) protons are forced through protonchannels

d.) electrons move passively throughelectron channels

e.) electrons move freely through the cellwall

Answer: B

118. How many bones are in the humanbody?

a) 167

b) 188

c) 200

d) 206

e) 312

Answer: d

119. How many total vertebrae are there inthe body?

a) 28

b) 36


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c) 26

d) 8

e) 12

Answer: c

120. Which of the following is not acomponent of the axial skeleton?

A. Skull

B. Vertebral Column

C. Sternum

D. Rib Cage

E. Pelvic Bone

Answer: E

121. Cancer cells often fail to trigger...

A. apoptosis

B. protein

C. tumors

D. none of the above

(Answer:A)

122. Which one is a way to treat cancer?

a. Surgery

b. Radiation

c. Immunotherapy

d. Gene therapy

e. all of the above

(Answer: e)

123. Cancer can be caused by all of thefollowing EXCEPT

A. viruses

B. Poor nutrition

C. certain chemicals

D. radiation

(ANSWER C.)

124. Which RNA molecule carries DNA'sinformation in the sequence of its bases(codons) from the nucleus to the cytoplasm?

A. rRNA

B. nRNA

C. mRNA

D. tRNA

Answer: C

125. A change in DNA is called a________?

A. disproportionation

B. recombination

C. polymerase chain reaction


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D. mutation

Answer: D.

126. Which is a similarity between RNA andDNA?

A. Are nucleic acids

B. Are composed of linked nucleotides

C. Have a sugar-phosphate backbone

D. Have four types of bases

E. All of the above

Answer: E

127. Curing genetic diseases by puttingnormal, functional genes into body cellsaffected by a mutant gene is called...

A. biotechnology

B. genetic engineering

C. gene therapy

D. recombination

Answer: C.

***Corrected question!****

Cancer can be caused by all of the followingEXCEPT

A. Viruses

B. Certain Chemicals

C. Poor Nutrition

D. Radiation

ANSWER: C

128. The shape of a typical neuron isspecialized for:

A. Movement

B. Communication with other cells

C. Barrier Building

D. Transporting Blood

ANSWER: B

129. Neuroglial cells do what to neurons?

A. Support

B. Protect

C. Insulate

D. Nuture

E. All of the Above

ANSWER: E

130. What is an Axon?

A. Body of neuron

B. Long extension of neuron

C. The signal of the neuron

D. None of the Above


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ANSWER: B

131. Neurons have:

A. Dendrites

B. Cell Body

C. Axon

D. All of the Above

ANSWER: D

132. What is the most common eye problem

affecting men and women older than 50?

A. cataracts

B. astigmatism

C. glaucoma

D. choroid

Answer: A

133. Which structure of the middle layer ofthe eye regulates the amount of lightentering the eye through the pupil?

A. Choroid

B. Ciliary body

C. Iris

D. Pupil

The answer is C

134. What type of receptors are specializedto respond to temperature?

a) photoreceptors

b) thermoreceptors

c) chemoreceptors

d) mechanoreceptors

Answer: b

135. The thalamus functions in thefollowing, EXCEPT:

a)motor activity

b) smell

c)memory

d)taste


Answer (b)

136. Central nervous system is abbreviated...

a)nnn

B)CNS

C)asa

D)LOL

answer (b)


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137. The brain is the _ _ _ _ _ _ _ commandcenter

a)army

b)central

c)tv

d)center

answer (b)

138. The cerebrum is the _ _ _ _ _ _ _ partof the brain

a)dumbest

b)biggest

c)hollowest

d) none of the above

answer (b)

139. The opening in the center of the iristhrough which light enters the eye is calledthe:

A:Iris

B:Pupil

C:Ciliary body

D:Lens

E:None of the above

Answer: B

140. Where do we experience the pain ofheart attack?

A:Stomach.

B:Testes.

C:Left Arm.

D:Heart.

E:Belly Button.

Answer: C

141. Convex lens ________.

A:Causes light rays to coverage so that theimage focuses on the retina .

B:Causes light rays to diverge so that theimage focuses on the retina.

C:Focuses entire image on retina.

D:I DON'T KNOW

E:None of the above

Answer:A

142. What is the function of Sclera?

A:Fine focusing of light onto retina.

B:Protects the eyeball.

C:Provides detail cover vision.

D:Beautify our eyes.

E:Transmits impulses from the retina to thebrain.

Answer:B


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143. A ________ is a set of threenucleotides for a specific amino acid.

A. Codon

B. DNA

C. mRNA

D. RNA

E. Translation

Answer: A. Codon

144. Which is not a stimulant?

A. Cocaine

B. Amphetamines

C. Alcohol

D. Nicotine

Answer: C. Alcohol

145. What is the conscious part of the brain?

A. The eyes

B. Cerebrum

C. Hypothalamus

D. Both A & C

E. The brain is actually a made up organ thatwas formed by the U.S. Government.

Answer: B. Cerebrum

146. A person who is in a coma is

A. Totally unresponsive to all sensory inputand cannot be awakened.

B. Totally responsive to all sensory inputand can be awakened.

C. Basically just sleeping.

D. A,B, & C.

E. Just A & C.

Answer: A. Totally unresponsive to allsensory input and cannot be awakened.

exam 3 questions & answers

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