A drug that inhibits monoamine oxidase would be expected to:
A) bind to dopamine receptors.
B) increase levels of monoamine neurotransmitters.
C) also inhibit COMT.
D) increase the synthesis of dopamine.

Question

Quizplus · Accepted Answer

Monoamine oxidase is an enzyme responsible for breaking down monoamine neurotransmitters such as dopamine, serotonin, and norepinephrine. Inhibiting this enzyme would lead to increased levels of these neurotransmitters in the synapse, making option B the correct answer. Option A is incorrect because dopamine receptors are not directly affected by this drug. Option C is incorrect because COMT (catechol-O-methyltransferase) is a different enzyme that metabolizes catecholamines and is not directly affected by inhibition of monoamine oxidase. Option D is incorrect because the drug does not directly affect dopamine synthesis.

A Drug That Inhibits Monoamine Oxidase Would Be Expected To