Acetylcholine can induce hyperpolarization by
A)binding to nicotinic receptors.
B)binding to muscarinic receptors.
C)binding to a-adrenergic receptors.
D)binding to b-adrenergic receptors.

Question

Quizplus · Accepted Answer

Acetylcholine can induce hyperpolarization by binding to muscarinic receptors, which are G-protein coupled receptors that activate potassium channels, leading to the efflux of K+ ions out of the cell and hyperpolarization. Nicotinic receptors, on the other hand, are ligand-gated ion channels that, when activated by acetylcholine, allow the influx of Na+ ions into the cells, leading to depolarization. Adrenergic receptors (a- and b-) are not directly affected by acetylcholine.

Acetylcholine Can Induce Hyperpolarization by