Acetylcholine is released into the synapse by
A) passive reuptake of acetylcholine into the presynaptic neuron.
B) active reuptake of acetylcholine into the presynaptic neuron.
C) passive diffusion into the postsynaptic membrane.
D) degradation by acetylcholinesterase.

Question

Quizplus · Accepted Answer

When acetylcholine is released into the synapse,it is quickly degraded by acetylcholinesterase to limit the duration of action.Acetylcholine receptors provide a negative feedback loop.The presynaptic neuron monitors the amount of acetylcholine in the synapse.Acetylcholine is not cleared by passive diffusion.

Acetylcholine Is Released into the Synapse by