Many buttons contain two sizes of vesicles; the larger ones typically contain
A) small-molecule neurotransmitters.
B) neuropeptides.
C) acetylcholine.
D) dopamine.
E) glutamate.

Question

Quizplus · Accepted Answer

Neuropeptides are typically larger molecules that require larger vesicles for storage and release.

Answer: A 
 Small-molecule neurotransmitters, such as serotonin and GABA, are typically stored and released from smaller vesicles. Acetylcholine, dopamine, and glutamate can be stored in both small and large vesicles depending on the specific neuron and target tissue.

Many Buttons Contain Two Sizes of Vesicles; the Larger Ones