When a neurotransmitter like GABA is acting in an inhibitory manner which of the following is likely a result of the GABA acting on the post synaptic cell?
A) depolarization of the postsynaptic cell membrane
B) influx of positively charged ions into the postsynaptic cell
C) hyperpolarization of the postsynaptic cell membrane
D) opening of chemically gated sodium channels

Question

Quizplus · Accepted Answer

GABA is an inhibitory neurotransmitter and therefore, its binding to its receptor leads to an influx of negatively charged ions (either chloride or potassium) into the cell, causing hyperpolarization of the postsynaptic membrane. This makes it harder for an action potential to be generated in the postsynaptic cell.

When a Neurotransmitter Like GABA Is Acting in an Inhibitory