Chemical Substances Released from the Presynaptic Terminal

Multiple Choice

Chemical substances released from the presynaptic terminal

A) bind to receptors on the postsynaptic membrane.
B) may inhibit or stimulate an action potential in the postsynaptic membrane depending on the receptors.
C) are normally broken down by enzymes located in the synapse.
D) are called neurotransmitters.
E) have all of these properties.