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at
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, CHAPTER .. 1 xz xz
1. Dendritescontainthenuclei,ribosomes,mitochondria,andotherstructuresfoundinmost
.A A. A. .
A .A x z x z cells.
a. True
b. False
ANSWER: False
2. Neuronsreceiveinformation andtransmit it toothercells.
.A xz A
. A. A. A.
a. True
b. False
ANSWER: True
3. SantiagoRamónyCajal used special staining techniquesto reveal that thebrainiscomposedofindividual cells.
A. A. xz x z ix z A. xz xz .
A A. xz
a. True
b. False
ANSWER: True
4. An efferent axon carriesinformation awayfrom a structure.
xz A. xz xz ix z x z
a. True
b. False
ANSWER: True
5. Thegreaterthesurface area of a dendrite,themore informationit can receive fromother neurons.
.
A A. xz xz xz xz xz A. xz x z
a. True
b. False
ANSWER: True
6. Neuronsaredistinguishedfromother cells bytheirshape.
A
. xz x z xz
a. True
b. False
ANSWER: True
7. Theroleofglialcellsistoactlike―glue‖or scaffoldingto supporttheneurons.
A
. A
. .A A. xz .A xz
a. True
b. False
ANSWER: False
8. Glial cellstransmit information acrosslongdistances.
xz xz xz
a. True
b. False
ANSWER: False
9. There aretwotypes of glial cellsthat produce myelin sheath. In the central nervous system, Schwann cells fulfil
A. xz xz xz xz xz xz xz xz xz xz xz xz xz xz
l this role and, in the periphery, oligodendrocytes produce it.
A. xz xz xz xz xz xz xz xz
, a. True
b. False
ANSWER: False
10. Theblood-brain barrierismade up ofcloselypacked glial cells.
xz xz A. x z
a. True
b. False
ANSWER: False
11. Thedifferencein voltagein arestingneuronis calledtherestingpotential.
A. xz .
A xz A
.
a. True
b. False
ANSWER: True
12. Increasingtheelectrical gradient forpotassiumwillreducethetendencyfor potassiumions toexitthe neuron.
x z xz xz xz xz
a. True
b. False
ANSWER: True
13. At the restingpotential,the potassiumchannels arecompletelyclosed andthesodiumchannels are almost closed.
xz A. .
A xz .
A xz xz A. .A A. xz xz
a. True
b. False
ANSWER: False
14. Dr. Skinner is workingin the lab measuringthe voltage of neurons, and duringone condition,she tri
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ed to depolarize the neurons from -70 mV to -80 mV.
A. xz xz xz xz xz xz xz xz xz
a. True
b. False
ANSWER: False
15. Actionpotentialscan be producedinthedendrites of some neurons.
A
. A. xz A
. A. xz xz
a. True
b. False
ANSWER: False
16. Thetwo basic kinds ofcells inthe nervous systemare
.A A. xz xz A. A
. A. xz .
a. neuronsand glia A
. xz
b. dendritesand axons A
. xz
c. ribosomes andlysosomes xz A.
d. neuronsandaxons
ANSWER:a
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A.
Name: Class: Date:
Chapter01
17. SantiagoRamon yCajal demonstrated that . xz xz A.
a. atrest,theneuronhasanegative chargeinside its membrane .A xz xz xz xz
b. neuronsare separate fromone another xz xz x z
c. neuronscommunicateat specializedjunctionscalledsynapses
.A A. .
A A
.
d. actionpotentialsfollowtheall-or-nonelaw A
.
ANSWER:b
18. Both and sharedthe Nobel PrizeforPhysiologyor Medicine in1906. A
. A. xz xz xz
a. Golgi and Cajal xz A.
b. Cajal andSherrington xz
c. Sherringtonand Golgi xz
d. Cajal andKalat xz
ANSWER:a
19. Dr. Kimi studies the plasma membrane of neurons. He specifically researches the specialized
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that allowin important things like water, oxygen, sodium, and so on.
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a. lipidchannels A.
b. proteinchannels
c. lipidreceptors A.
d. proteinreceptors
ANSWER:b
20. Neurons differ most stronglyfrom otherbodycellsin their
A. xz xz i A
. A. .
a. temperature
b. shape
c. osmoticpressure
d. mitochondria
ANSWER:b
21. Whatdo neurons have thatother cells do not?
A. xz A. xz xz xz xz
a. Aplasma membrane
.A xz
b. Large,branchingextensions
c. Proteinchannels
d. An endoplasmic reticulum
A. A.
ANSWER:b
22. Dr. McLaughlin’s labstudies how newlyformed proteins arefoldedinside neurons. Theywould be most interest
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ed in studying the
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a. endoplasmic reticulum A.
b. mitochondria
c. ribosomes