An Inhibitory Postsynaptic Potential (IPSP)occurs in a Membrane Made More

Question

An inhibitory postsynaptic potential (IPSP)occurs in a membrane made more permeable to
A)potassium ions.
B)sodium ions.
C)calcium ions.
D)ATP.
E)all neurotransmitter molecules.

Accepted Answer

IPSPs occur when the membrane becomes more permeable to potassium ions, making it more difficult for the neuron to depolarize and fire an action potential. This leads to a hyperpolarization of the membrane potential, making it less likely for the neuron to reach threshold and fire.