Neurotransmitters are molecules that cross the synaptic cleft via
A)active transport and always inhibit the postsynaptic neuron.
B)acitve transport and always excite the postsynaptic neuron.
C)passive diffusion and either excite or inhibit the postsynaptic neuron.
D)passive diffusion and always inhibit the postsynaptic neuron.
E)passive diffusion and always excite the postsynaptic neuron.

Question

Quizplus · Accepted Answer

Neurotransmitters cross the synaptic cleft via passive diffusion and can either excite or inhibit the postsynaptic neuron depending on the specific receptor they bind to. Therefore, option C is the best choice.

Neurotransmitters Are Molecules That Cross the Synaptic Cleft Via