All of the following statements about neurotransmitters are generally true EXCEPT:
(A) They may cause depolarization or hyperpolarization of the postsynaptic membrane.
(B) They are actively transported across the synaptic cleft.
(C) They are released from membrane-bound packets. called vesicles.
(D) They may be enzymatically degraded at the postsynaptic membrane.
(E) They bind. to specific. receptors on the postsynaptic membrane.
Answer: B
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AP Biology
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