The effects of a neurotransmitter on the postsynaptic membrane include which of the following
A)Excitatory or inhibitory responses.
B)Neurotransmitter molecules are absorbed by the postsynaptic cell.
C)The neurotransmitter floats around in the synaptic cleft.
D)Upon stimulation, the membrane releases more neurotransmitter molecules.
E)None of the answers are correct.

Question

Quizplus · Accepted Answer

Neurotransmitters can have either an excitatory or inhibitory effect on the postsynaptic membrane, depending on the type of receptor they bind to. Option B is incorrect because neurotransmitter molecules are not absorbed by the postsynaptic cell, but rather are either broken down or taken back up into the presynaptic cell. Option C is incorrect because neurotransmitters do not just float around in the synaptic cleft, they are released by the presynaptic cell and bind to receptors on the postsynaptic cell. Option D is incorrect because the membrane does not release more neurotransmitter molecules upon stimulation, but rather the presynaptic cell releases more neurotransmitter in response to an action potential.

The Effects of a Neurotransmitter on the Postsynaptic Membrane Include