An example of ligand-gated ion channels is ________.
A) the spreading of action potentials in the heart
B) acetylcholine receptors at the neuromuscular junction
C) cAMP-dependent protein kinases
D) action potentials on the axon

Question

Quizplus · Accepted Answer

Acetylcholine receptors at the neuromuscular junction are an example of ligand-gated ion channels, as they are activated by binding of the neurotransmitter acetylcholine. The spreading of action potentials in the heart and action potentials on the axon are not examples of ligand-gated ion channels. cAMP-dependent protein kinases are not ion channels but rather enzymes involved in signal transduction.

An Example of Ligand-Gated Ion Channels Is ________