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NSG 522 PSYCHOPHARMACOLOGY EXAM 2 NEWEST
2026 COMPLETE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST VERSION!!!
18. Which of the following represents the correct order of
events at the neuromuscular junction?
a. AChE secreted by muscle cell → ACh metabolized into
choline + acetic acid → choline transported back into
terminal
b. ACh metabolized into choline + acetic acid → AChE
secreted by cholinergic neuron → choline transported
back into terminal
c. AChE secreted by muscle cell → ACh metabolized into
choline + acetic acid → choline and acetic acid
transported back into terminal
d. Choline transported to neuromuscular junction → AChE
secreted by muscle cell → ACh metabolized into choline +
acetic acid - ANSWER-a. AChE secreted by muscle cell →
ACh metabolized into choline + acetic acid → choline
transported back into terminal
19. Myasthenia gravis
a. involves a low production of acetylcholine.
b. is best treated by drugs such as Soman.
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c. involves an autoimmune process that destroys
acetylcholine receptors.
d. should be treated by neostigmine because it crosses
the blood-brain barrier. - ANSWER-C. involves an
autoimmune process that destroys acetylcholine receptors
20. Pyridostigmine can be used as an antidote to Sarin
because
a. pyridostigmine acts on ACh release, not on its
breakdown by AChE.
b. temporary interactions between pyridostigmine and
AChE prevent it from being permanently inactivated by
Sarin.
c. pyridostigmine inactivates Sarin by interacting with its
ACh binding site.
d. pyridostigmine prevents Sarin from crossing the blood-
brain barrier. - ANSWER-b. temporary interactions
between pyridostigmine and AChE prevent it from being
permanently inactivated by Sarin.
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21. Why have researchers been particularly interested in
the agent 192 IgG-saporin?
a. It is a new antidote for nerve gas exposure.
b. It is a neurotoxin for cells in the brain stem cholinergic
system.
c. It destroys BFCS cells and causes cognitive deficits.
d. It is a drug that might have use in the treatment of
Alzheimer's disease. - ANSWER-c. It destroys BFCS cells
and causes cognitive deficits.
22. Nicotinic receptors found on muscle cells require
binding of _______ molecules of ACh and are composed
of _______ subunits, a _______ subunit, one and either a
or an subunit.
a. two; two alpha 1; Beta 1
b. five; two alpha 2; Beta 1
c. two to five; two alpha 1; Beta 2
d. two; two alpha7; Beta 1 - ANSWER-a. two; two alpha 1;
Beta 1
23. Muscarinic receptors in the brain play a role in all of
the following except for
a. motor function.
b. cognition.
NSG 522 PSYCHOPHARMACOLOGY EXAM 2 NEWEST
2026 COMPLETE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST VERSION!!!
18. Which of the following represents the correct order of
events at the neuromuscular junction?
a. AChE secreted by muscle cell → ACh metabolized into
choline + acetic acid → choline transported back into
terminal
b. ACh metabolized into choline + acetic acid → AChE
secreted by cholinergic neuron → choline transported
back into terminal
c. AChE secreted by muscle cell → ACh metabolized into
choline + acetic acid → choline and acetic acid
transported back into terminal
d. Choline transported to neuromuscular junction → AChE
secreted by muscle cell → ACh metabolized into choline +
acetic acid - ANSWER-a. AChE secreted by muscle cell →
ACh metabolized into choline + acetic acid → choline
transported back into terminal
19. Myasthenia gravis
a. involves a low production of acetylcholine.
b. is best treated by drugs such as Soman.
,2|Page
c. involves an autoimmune process that destroys
acetylcholine receptors.
d. should be treated by neostigmine because it crosses
the blood-brain barrier. - ANSWER-C. involves an
autoimmune process that destroys acetylcholine receptors
20. Pyridostigmine can be used as an antidote to Sarin
because
a. pyridostigmine acts on ACh release, not on its
breakdown by AChE.
b. temporary interactions between pyridostigmine and
AChE prevent it from being permanently inactivated by
Sarin.
c. pyridostigmine inactivates Sarin by interacting with its
ACh binding site.
d. pyridostigmine prevents Sarin from crossing the blood-
brain barrier. - ANSWER-b. temporary interactions
between pyridostigmine and AChE prevent it from being
permanently inactivated by Sarin.
, 3|Page
21. Why have researchers been particularly interested in
the agent 192 IgG-saporin?
a. It is a new antidote for nerve gas exposure.
b. It is a neurotoxin for cells in the brain stem cholinergic
system.
c. It destroys BFCS cells and causes cognitive deficits.
d. It is a drug that might have use in the treatment of
Alzheimer's disease. - ANSWER-c. It destroys BFCS cells
and causes cognitive deficits.
22. Nicotinic receptors found on muscle cells require
binding of _______ molecules of ACh and are composed
of _______ subunits, a _______ subunit, one and either a
or an subunit.
a. two; two alpha 1; Beta 1
b. five; two alpha 2; Beta 1
c. two to five; two alpha 1; Beta 2
d. two; two alpha7; Beta 1 - ANSWER-a. two; two alpha 1;
Beta 1
23. Muscarinic receptors in the brain play a role in all of
the following except for
a. motor function.
b. cognition.
