Which of these statements correctly describes neuropeptides?
A)They are sometimes cosecreted along with classical neurotransmitters.
B)They are synthesized in the cytosol of the axon terminal.
C) They act at the subsynaptic membrane of the postsynaptic neuron.
D) They usually alter the potential of postsynaptic cells by opening specific ion channels.

Question

Quizplus · Accepted Answer

Neuropeptides are often cosecreted with classical neurotransmitters, and act as neuromodulators to affect the activity of the postsynaptic cell. They are synthesized in the cell body and transported to the axon terminal for release. They exert their effects by binding to specific receptors on the postsynaptic membrane and often activate second messenger systems, rather than directly opening ion channels.

Which of These Statements Correctly Describes Neuropeptides