The Activity of Acetylcholine in a Synapse Is Terminated by Its

Multiple Choice

The activity of acetylcholine in a synapse is terminated by its

A) active transport out of the synaptic cleft.
B) diffusion across the presynaptic membrane.
C) active transport across the postsynaptic membrane.
D) diffusion across the postsynaptic membrane.
E) degradation by a hydrolytic enzyme in the synaptic cleft.