A(n) _______ inhibitor of catecholamine vesicular uptake allows some action of the target protein while the cell synthesizes new protein molecules that have not been subjected to the inhibitory drug, whereas a(n) _______ inhibitor does not.
A) COMT; MAO
B) MAO; COMT
C) reversible; irreversible
D) irreversible reversible

Question

Quizplus · Accepted Answer

A reversible inhibitor of catecholamine vesicular uptake allows for some activity of the target protein while the drug is present, but once the drug is removed, the protein can resume full activity. This is because the drug is not permanently binding to the protein or altering its structure. In contrast, an irreversible inhibitor permanently deactivates the protein and cannot be reversed even after the drug is removed. COMT and MAO are enzymes that metabolize catecholamines, not inhibitors of vesicular uptake.

A(n) _______ Inhibitor of Catecholamine Vesicular Uptake Allows Some Action