Hormones exert their effects:
A) similarly to metabotropic neurotransmitters.
B) similarly to ionotropic neurotransmitters.
C) by attaching to special receptors on muscle fibers.
D) by being metabolized by presynaptic cells and thus converted into neurotransmitters.

Question

Quizplus · Accepted Answer

Hormones exert their effects similarly to metabotropic neurotransmitters by binding to specific receptors on the surface of target cells and triggering a cascade of intracellular signaling pathways that ultimately lead to a specific physiological response. This is in contrast to ionotropic neurotransmitters, which exert their effects more rapidly by directly opening ion channels in the postsynaptic membrane. Hormones are not directly involved in muscle contraction and are not metabolized into neurotransmitters.

Hormones Exert Their Effects