Question 1

The difference in electrical charge between the inside and the outside of the axon membrane is defined as the _______ potential.

Accepted Answer

A)   membrane
B)   local
C)   glial
D)   action
E)   axonF) A) and B)
G) B) and E)

Question 2

The effects of acetylcholine are prolonged by drugs that inactivate the enzyme ________.

Accepted Answer

ACHe or ac...

Question 3

When substances are transported from the soma to the terminal buttons at the end of the axon, this process is referred to as ____________.

Accepted Answer

A)   retrograde axoplasmic transport
B)   systemic axoplasmic transport
C)   anterograde axoplasmic transport
D)   peripheral axoplasmic transport
E)   anterograde somatoplasmic transportF) A) and E)
G) C) and D)

Question 4

A cup of sugar is dumped into a gallon of hot water. After 30 minutes, we will expect that the process of _______ will ensure that the sugar molecules are evenly distributed throughout the water.

Accepted Answer

A)   retrograde transport
B)   diffusion
C)   anterograde transport
D)   electrostatic pressure
E)   salinityF) A) and E)
G) B) and E)

Question 5

The term _______ is derived from the word meaning "little bladder."

Accepted Answer

A)   vesicle
B)   neurite
C)   cisternae
D)   mitochondria
E)   storage poolF) B) and D)
G) A) and B)

Question 6

In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Accepted Answer

The answer of In a myelinated axon, ions enter or...

Question 7

The term ________ is derived from the word meaning "little bladder."

Accepted Answer

The answer of The term ________ is derived from the...

Question 8

As a consequence of the activity of the sodium-potassium transporters,

Accepted Answer

A)   extracellular sodium concentrations are kept low.
B)   intracellular sodium concentrations are kept very high.
C)   extracellular potassium concentrations are kept very high.
D)   intracellular sodium concentrations are kept low.
E)   very little energy is required to maintain ionic differences across the membrane.F) None of the above
G) A) and C)

Question 9

________ receptors involve the direct opening of an ion channel, whereas metabotropic
receptors involve the action of second messenger molecules inside the postsynaptic cell.

Accepted Answer

The answer of ________ receptors involve the direct opening of...

Question 10

The interior of a neuron at rest

Accepted Answer

A)   has the same ionic concentrations as the outside.
B)   is at the same voltage potential as the outside.
C)   has a higher sodium concentration than outside.
D)   is negatively charged relative to the outside.
E)   has a lower potassium concentration than outside.F) C) and D)
G) None of the above

Question 11

Match the ion channel action with its resulting change in membrane potential.

Accepted Answer

A)   entry of a negative ion; hyperpolarization
B)   entry of a positive ion; hyperpolarization
C)   exit of a positive ion; depolarization
D)   exit of a negative ion; hyperpolarization
E)   inactivation of sodium-potassium transporters; depolarizationF) D) and E)
G) A) and D)

Question 12

Which of the following is correct regarding axoplasmic transport?

Accepted Answer

A)   Dendrograde transport involves moving substances from the dendrites to the soma.
B)   Retrograde transport involves moving substances from the soma to the axon terminals.
C)   The kinesin molecule is involved in anterograde transport.
D)   Retrograde transport is twice as fast as anterograde transport.
E)   The dynein molecule is involved in anterograde transport.F) B) and C)
G) A) and E)

Question 13

Myelination of brain nerve axon membranes is accomplished by

Accepted Answer

A)   oligodendrocytes.
B)   microglia.
C)   astrocytes.
D)   neurocytes.
E)   Schwann cells.F) C) and D)
G) B) and C)

Question 14

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

Accepted Answer

A)   Sodium ions move into the cell.
B)   Potassium ions move out of the cell.
C)   Potassium ions move into the cell.
D)   Chloride ions move into the cell.
E)   Protein anions move out of the cell.F) B) and E)
G) A) and B)

Question 15

The _______ potential is defined as the difference in electrical charge between the inside and the outside of an undisturbed axon membrane.

Accepted Answer

A)   resting membrane
B)   local
C)   resting
D)   action
E)   axonF) B) and C)
G) A) and B)

Question 16

You reach out and touch a piece of cloth, feeling its texture. The cells that gather this sensory information are part of the __________ nervous system.

Accepted Answer

A)   central
B)   peripheral
C)   autonomic
D)   parasympathetic
E)   sympatheticF) A) and E)
G) C) and D)

Exam 2: Structure and Function of Cells of the Nervous System

The interior of a neuron at rest

Correct Answer
verified

In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Correct Answer
verified

The effects of acetylcholine are prolonged by drugs that inactivate the enzyme ________.

Correct Answer
verified
ACHe or ac...
View Answer

________ receptors involve the direct opening of an ion channel, whereas metabotropic receptors involve the action of second messenger molecules inside the postsynaptic cell.

Correct Answer
verified

The term ________ is derived from the word meaning "little bladder."

Correct Answer
verified

The difference in electrical charge between the inside and the outside of the axon membrane is defined as the _______ potential.

Correct Answer
verified

Which of the following is correct regarding axoplasmic transport?

Correct Answer
verified

You reach out and touch a piece of cloth, feeling its texture. The cells that gather this sensory information are part of the __________ nervous system.

Correct Answer
verified

Myelination of brain nerve axon membranes is accomplished by

Correct Answer
verified

As a consequence of the activity of the sodium-potassium transporters,

Correct Answer
verified

Match the ion channel action with its resulting change in membrane potential.

Correct Answer
verified

The _______ potential is defined as the difference in electrical charge between the inside and the outside of an undisturbed axon membrane.

Correct Answer
verified

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

Correct Answer
verified

A cup of sugar is dumped into a gallon of hot water. After 30 minutes, we will expect that the process of _______ will ensure that the sugar molecules are evenly distributed throughout the water.

Correct Answer
verified

When substances are transported from the soma to the terminal buttons at the end of the axon, this process is referred to as ____________.

Correct Answer
verified

The term _______ is derived from the word meaning "little bladder."

Correct Answer
verified

Exam 2: Structure and Function of Cells of the Nervous System

The interior of a neuron at rest

Correct AnswerverifiedShow Answer

In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Correct AnswerverifiedShow Answer

The effects of acetylcholine are prolonged by drugs that inactivate the enzyme ________.

Correct AnswerverifiedACHe or ac...View AnswerShow Answer

________ receptors involve the direct opening of an ion channel, whereas metabotropic receptors involve the action of second messenger molecules inside the postsynaptic cell.

Correct AnswerverifiedShow Answer

The term ________ is derived from the word meaning "little bladder."

Correct AnswerverifiedShow Answer

The difference in electrical charge between the inside and the outside of the axon membrane is defined as the _______ potential.

Correct AnswerverifiedShow Answer

Which of the following is correct regarding axoplasmic transport?

Correct AnswerverifiedShow Answer

You reach out and touch a piece of cloth, feeling its texture. The cells that gather this sensory information are part of the __________ nervous system.

Correct AnswerverifiedShow Answer

Myelination of brain nerve axon membranes is accomplished by

Correct AnswerverifiedShow Answer

As a consequence of the activity of the sodium-potassium transporters,

Correct AnswerverifiedShow Answer

Match the ion channel action with its resulting change in membrane potential.

Correct AnswerverifiedShow Answer

The _______ potential is defined as the difference in electrical charge between the inside and the outside of an undisturbed axon membrane.

Correct AnswerverifiedShow Answer

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

Correct AnswerverifiedShow Answer

A cup of sugar is dumped into a gallon of hot water. After 30 minutes, we will expect that the process of _______ will ensure that the sugar molecules are evenly distributed throughout the water.

Correct AnswerverifiedShow Answer

When substances are transported from the soma to the terminal buttons at the end of the axon, this process is referred to as ____________.

Correct AnswerverifiedShow Answer

The term _______ is derived from the word meaning "little bladder."

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
ACHe or ac...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
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