What is the fate of ACh following binding to receptors?
A) it remains bound causing continued excitement.
B) it is removed by the enzyme acetylcholinesterase.
C) it is actively reabsorbed the axon terminal.
D) it is passively reabsorbed by the muscle cell.
E) none of these answers.

Question

Quizplus · Accepted Answer

Acetylcholinesterase breaks down ACh into choline and acetate, which are then taken back up by the axon terminal to be used again in synthesizing new ACh molecules. This process is needed to prevent continuous stimulation of the receptors, which could lead to tissue damage or exhaustion.

What Is the Fate of ACh Following Binding to Receptors