Nurs 615 Pharm Exam 1
Psychopharm Exam 1
A serotonin molecule binds to a 5HT2A receptor causing electrical impulses to be sent
down a GABA neuron's axon terminal, eventually releasing GABA to the GABA-A
receptor of its postsynaptic neuron. Which type of neurotransmission does this
describe?
A. Classic synaptic neurotransmission
B. Retrograde neurotransmission
C. Volume neurotransmission
D. Signal transduction cascade
Correct Answer
A. Classic synaptic neurotransmission
Communication between human CNS neurons at synapses is:
A. Chemical
B. Electrical
Correct Answer
A. Chemical
The direct role of transcription factors is to:
A. Cause neurotransmitter release
B. Influence gene expression
C. Synthesize enzymes
D. Trigger signal transduction cascades
Correct Answer
B. Influence gene expression
What is epigenetics?
A. Acquired trait resulting from a change in DNA sequence
B. Acquired trait resulting from a change in gene expression
C. Heritable trait resulting from a change in DNA sequence
D. Heritable trait resulting from a change in gene expression
Correct Answer
D. Heritable trait resulting from a change in gene expression
Presynaptic reuptake transporters are a major method of inactivation for which of the
following?
, A. Serotonin
B. Serotonin, dopamine
C. Serotonin, dopamine, norepinephrine
D. None of the above.
Correct Answer
C. Serotonin, dopamine, norepinephrine
What is constitutive activity?
A. Signal transduction when an agonist is bound to the receptor
B. Signal transduction when an antagonist to the receptor
C. Signal transduction when an inverse agonist is bound to the receptor
D. Signal transduction when no agonist or inverse agonist is bound to the receptor
Correct Answer
D. Signal transduction when no agonist or inverse agonist is bound to the receptor
A partial agonist has what effect on neurotransmission?
A. Net agonism when neurotransmission is deficient
B. Net antagonism when neurotransmission is excessive
C. A and B
D. Neither A nor B
Correct AnswerC. A and B
A receptor with four transmembrane regions changes conformation as GABA binds.
Which system is this process describing?
A. Presynaptic transporter
B. Ligand-gated ion channel
C. Voltage-sensitive ion channel
Correct Answer
B. Ligand-gated ion channel
The known receptor sites for ligand-gated ion channels are:
A. Inside the channel
B. Outside the channel
C. Both inside and outside the channel
D. Ligand-gated ion channels do not have receptor sites
Correct Answer
C. Both inside and outside the channel
Agonists cause ligand-gated ion channels to:
A. Open wider
B. Open for longer duration of time
Psychopharm Exam 1
A serotonin molecule binds to a 5HT2A receptor causing electrical impulses to be sent
down a GABA neuron's axon terminal, eventually releasing GABA to the GABA-A
receptor of its postsynaptic neuron. Which type of neurotransmission does this
describe?
A. Classic synaptic neurotransmission
B. Retrograde neurotransmission
C. Volume neurotransmission
D. Signal transduction cascade
Correct Answer
A. Classic synaptic neurotransmission
Communication between human CNS neurons at synapses is:
A. Chemical
B. Electrical
Correct Answer
A. Chemical
The direct role of transcription factors is to:
A. Cause neurotransmitter release
B. Influence gene expression
C. Synthesize enzymes
D. Trigger signal transduction cascades
Correct Answer
B. Influence gene expression
What is epigenetics?
A. Acquired trait resulting from a change in DNA sequence
B. Acquired trait resulting from a change in gene expression
C. Heritable trait resulting from a change in DNA sequence
D. Heritable trait resulting from a change in gene expression
Correct Answer
D. Heritable trait resulting from a change in gene expression
Presynaptic reuptake transporters are a major method of inactivation for which of the
following?
, A. Serotonin
B. Serotonin, dopamine
C. Serotonin, dopamine, norepinephrine
D. None of the above.
Correct Answer
C. Serotonin, dopamine, norepinephrine
What is constitutive activity?
A. Signal transduction when an agonist is bound to the receptor
B. Signal transduction when an antagonist to the receptor
C. Signal transduction when an inverse agonist is bound to the receptor
D. Signal transduction when no agonist or inverse agonist is bound to the receptor
Correct Answer
D. Signal transduction when no agonist or inverse agonist is bound to the receptor
A partial agonist has what effect on neurotransmission?
A. Net agonism when neurotransmission is deficient
B. Net antagonism when neurotransmission is excessive
C. A and B
D. Neither A nor B
Correct AnswerC. A and B
A receptor with four transmembrane regions changes conformation as GABA binds.
Which system is this process describing?
A. Presynaptic transporter
B. Ligand-gated ion channel
C. Voltage-sensitive ion channel
Correct Answer
B. Ligand-gated ion channel
The known receptor sites for ligand-gated ion channels are:
A. Inside the channel
B. Outside the channel
C. Both inside and outside the channel
D. Ligand-gated ion channels do not have receptor sites
Correct Answer
C. Both inside and outside the channel
Agonists cause ligand-gated ion channels to:
A. Open wider
B. Open for longer duration of time
