In Order to Produce a Depolarization or Hyperpolarization of the Postsynaptic

Multiple Choice

In order to produce a depolarization or hyperpolarization of the postsynaptic membrane, neurotransmitters

A) diffuse widely in the brain to exert changes in metabolism.
B) act through ionotropic receptors to activate a second-messenger.
C) are released into the synapse from the cisternae.
D) open ion channels in the postsynaptic membrane.
E) alter ion channel activity for minutes.