Question 1

Which class of transmitters was most recently classified?

Accepted Answer

A)  ion
B)  gaseous
C)  amino acid
D)  lipidE) A) and D)
F) None of the above

Question 2

Acetylcholine is deactivated through:

Accepted Answer

A)  reuptake.
B)  diffusion.
C)  enzymatic degradation.
D)  glial reuptake.E) A) and B)
F) A) and C)

Question 3

The rate-limiting factor of dopamine synthesis can be bypassed through the oral administration of:

Accepted Answer

A)  acetylcholine.
B)  L-dopa.
C)  tryptophan.
D)  norepinephrine.E) A) and B)
F) C) and D)

Question 4

Excessive mesolimbic dopaminergic activity may be related to:

Accepted Answer

A)  depression.
B)  schizophrenia.
C)  Alzheimer disease.
D)  mania.E) B) and C)
F) A) and D)

Question 5

Neurons in which the ion channels from one cell connect directly with ion channels on another cell are called:

Accepted Answer

A)  gap junctions or chemical synapses.
B)  electrical synapses or ion synapses.
C)  chemical synapses or gap junctions.
D)  gap junctions or electrical synapses.E) All of the above
F) None of the above

Question 6

Which of the following is the correct chronological order for presynaptic events?

Accepted Answer

A)  calcium ion influx occurs, action potential reaches the axon terminal, vesicle fuses with membrane, neurotransmitter diffusion occurs
B)  action potential reaches the axon terminal, calcium ion channels open, exocytosis occurs, neurotransmitter diffusion occurs
C)  exocytosis occurs, calcium ion influx occurs, action potential reaches the axon terminal, membrane depolarization occurs
D)  action potential reaches the axon terminal, calcium ion channels open, neurotransmitter diffusion occurs, exocytosis occursE) A) and B)
F) A) and C)

Question 7

_____ is the process of neurotransmitter deactivation whereby the neurotransmitter simply leaves the synaptic cleft.

Accepted Answer

A)  Diffusion
B)  Enzymatic degradation
C)  Reuptake
D)  Glial uptakeE) C) and D)
F) B) and D)

Question 8

Chemicals released by a neuron onto a target with an excitatory or inhibitory effect are called:

Accepted Answer

A)  messengers.
B)  action potentials.
C)  neurotransmitters.
D)  second messengers.E) A) and B)
F) C) and D)

Question 9

Protein molecules that move substances across a cell membrane are called:

Accepted Answer

A)  microfilaments.
B)  microtubules.
C)  transporters.
D)  microvehiclesE) A) and B)
F) A) and C)

Question 10

Mania has been related to increased:

Accepted Answer

A)  acetylcholine.
B)  dopamine.
C)  norepinephrine.
D)  serotonin.E) B) and C)
F) A) and D)

Question 11

What are the differences between excitatory and inhibitory synapses?

Accepted Answer

Excitatory and inhibitory synapses are t...

Question 12

Which is the correct sequence of amine neurotransmitters?

Accepted Answer

A)  tyrosine, dopamine, L-dopa, epinephrine, norepinephrine
B)  L-dopa, tyrosine, dopamine, norepinephrine, epinephrine
C)  tyrosine, L-dopa, dopamine, epinephrine, norepinephrine
D)  tyrosine, L-dopa, dopamine, norepinephrine, epinephrineE) None of the above
F) All of the above

Question 13

Tyrosine hydroxylase is NOT involved in the synthesis of:

Accepted Answer

A)  acetylcholine.
B)  dopamine.
C)  L-dopa.
D)  norepinephrine.E) B) and C)
F) A) and D)

Question 14

Habituation is the result of:

Accepted Answer

A)  sensory neurons not being able to produce action potentials.
B)  motor neurons not being able to produce action potentials.
C)  excitatory postsynaptic potentials being smaller.
D)  both sensory and motor neurons not being able to produce action potentials.E) None of the above
F) A) and D)

Question 15

Synaptic structure was first viewed in the 1950s, with a(n) :

Accepted Answer

A)  electron microscope.
B)  light microscope.
C)  confocal microscope.
D)  Nissl-stained microscopic procedure.E) None of the above
F) A) and B)

Question 16

List four peptide transmitters and describe their functions.

Accepted Answer

1. Substance P: Substance P is a neurope...

Question 17

_____ acts to increase heart rate.

Accepted Answer

A)  Acetylcholine
B)  Norepinephrine
C)  Serotonin
D)  DopamineE) C) and D)
F) A) and C)

Question 18

How is a neurotransmitter removed from the synaptic cleft?

Accepted Answer

A)  diffusion
B)  enzymatic degradation
C)  uptake by surrounding glial cells
D)  All of the answers are correct.E) None of the above
F) All of the above

Question 19

When an axon terminal synapses on another axon terminal, it is called an _____ synapse.

Accepted Answer

A)  axosomatic
B)  axoaxonic
C)  axosynaptic
D)  axodendriticE) None of the above
F) A) and B)

Question 20

_____ plays a role in regulating mood, appetite, aggression, and arousal.

Accepted Answer

A)  Norepinephrine
B)  Dopamine
C)  Acetylcholine
D)  SerotoninE) A) and B)
F) None of the above

Exam 5: How Do Neurons Communicate and Adapt

Mania has been related to increased:

Correct AnswerverifiedShow Answer

Synaptic structure was first viewed in the 1950s, with a(n) :

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Habituation is the result of:

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List four peptide transmitters and describe their functions.

Correct AnswerAnswered by ExamLex AI1. Substance P: Substance P is a neurope...View AnswerShow Answer

Acetylcholine is deactivated through:

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Neurons in which the ion channels from one cell connect directly with ion channels on another cell are called:

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The rate-limiting factor of dopamine synthesis can be bypassed through the oral administration of:

Correct AnswerverifiedShow Answer

What are the differences between excitatory and inhibitory synapses?

Correct AnswerAnswered by ExamLex AIExcitatory and inhibitory synapses are t...View AnswerShow Answer

When an axon terminal synapses on another axon terminal, it is called an _____ synapse.

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Tyrosine hydroxylase is NOT involved in the synthesis of:

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How is a neurotransmitter removed from the synaptic cleft?

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Which is the correct sequence of amine neurotransmitters?

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Protein molecules that move substances across a cell membrane are called:

Correct AnswerverifiedShow Answer

Excessive mesolimbic dopaminergic activity may be related to:

Correct AnswerverifiedShow Answer

Chemicals released by a neuron onto a target with an excitatory or inhibitory effect are called:

Correct AnswerverifiedShow Answer

_____ plays a role in regulating mood, appetite, aggression, and arousal.

Correct AnswerverifiedShow Answer

_____ is the process of neurotransmitter deactivation whereby the neurotransmitter simply leaves the synaptic cleft.

Correct AnswerverifiedShow Answer

_____ acts to increase heart rate.

Correct AnswerverifiedShow Answer

Which class of transmitters was most recently classified?

Correct AnswerverifiedShow Answer

Which of the following is the correct chronological order for presynaptic events?

Correct AnswerverifiedShow Answer

Correct Answer
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Answered by ExamLex AI
1. Substance P: Substance P is a neurope...
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Answered by ExamLex AI
Excitatory and inhibitory synapses are t...
View Answer

Correct Answer
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Correct Answer
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