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Name: Class: Date:
Chapter 01 jk
1. Dendrites contain the nuclei, ribosomes, mitochondria, and other structures found in most cells.
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a. True
b. False
ANSWER: False
2. Neurons receive information and transmit it to other cells.
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a. True
b. False
ANSWER: True
3. Santiago Ramón yCajal used special staining techniques to reveal that the brain is composed of individual cells.
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a. True
b. False
ANSWER: True
4. An efferent axon carries information away from a structure.
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a. True
b. False
ANSWER: True
5. The greater the surface area of a dendrite, the more information it can receive fromother neurons.
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a. True
b. False
ANSWER: True
6. Neurons are distinguished fromother cells by their shape.
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a. True
b. False
ANSWER: True
7. Therole of glial cells is to act like ―glue‖ or scaffolding to support the neurons.
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a. True
b. False
ANSWER: False
8. Glial cells transmit information across longdistances.
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a. True
b. False
ANSWER: False
9. There are two types of glial cells that produce myelin sheath. In the central nervous system, Schwann cells fulfill
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this role and, in the periphery, oligodendrocytes produce it.
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Name: Class: Date:
Chapter 01 jk
a. True
b. False
ANSWER: False
10. Theblood-brain barrier is made up of closely packed glial cells.
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a. True
b. False
ANSWER: False
11. Thedifference in voltage in a resting neuron is called the resting potential.
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a. True
b. False
ANSWER: True
12. Increasingthe electrical gradient for potassiumwill reduce the tendencyfor potassiumions to exit the neuron.
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a. True
b. False
ANSWER: True
13. At the resting potential, the potassium channels are completely closed and the sodiumchannels are almost closed.
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a. True
b. False
ANSWER: False
14. Dr. Skinner is working in the lab measuring the voltage of neurons, and during one condition, she
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tried to depolarize the neurons from -70 mV to -80 mV.
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a. True
b. False
ANSWER: False
15. Actionpotentials can be produced in the dendrites of some neurons.
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a. True
b. False
ANSWER: False
16. The two basic kinds of cells in the nervous systemare
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a. neurons and glia jk jk
b. dendrites and axons jk jk
c. ribosomes and lysosomes jk jk
d. neurons and axons jk jk
ANSWER: a jk
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17. Santiago Ramon yCajal demonstrated that
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a. at rest, the neuron has a negative charge inside its membrane
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b. neurons are separate fromone another jk jk jk jk
c. neurons communicate at specializedjunctions called synapses
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d. action potentials follow theall-or-none law
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ANSWER: b jk
18. Both and shared the Nobel Prize for Physiology or Medicine in 1906. jk jk jk jk jk jk jk jk jk
a. Golgi and Cajal jk jk
b. Cajal and Sherrington jk jk
c. Sherringtonand Golgi jk
d. Cajal and Kalat jk jk
ANSWER: a jk
19. Dr. Kimi studies the plasma membrane of neurons. He specifically researches the specialized
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a. lipid channels jk
b. protein channels jk
c. lipid receptors jk
d. protein receptors jk
ANSWER: b jk
20. Neurons differ most strongly from other body cells in their
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a. temperature
b. shape
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d. mitochondria
ANSWER: b jk
21. What do neurons have that other cells do not?
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a. A plasma membrane
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b. Large, branchingextensions jk
c. Protein channels jk
d. An endoplasmic reticulum
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ANSWER: b jk
22. Dr. McLaughlin’s lab studies how newly formed proteins are folded inside neurons. They would be most
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a. endoplasmic reticulum jk
b. mitochondria
c. ribosomes