Neuropeptides are larger molecules that are typically used for more long-term signaling, while small molecule neurochemicals like neurotransmitters are used for more rapid signaling. Vesicles containing neuropeptides are used only once because they are often released in larger quantities and have a longer-lasting effect, while vesicles containing small molecule neurochemicals are recycled because they are used more frequently in smaller quantities.

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Vesicles

Question 29

Multiple Choice

Vesicles

A) containing neuropeptides are used only once, whereas vesicles containing small molecule neurochemicals are recycled.
B) containing small molecule neurochemicals are used only once, whereas vesicles containing neuropeptides are recycles.
C) containing some small molecule neurochemicals are recycled, while vesicles containing other types of small molecules are not.
D) containing some neuropeptides are recycled, while vesicles containing other types of neuropeptides are not.

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