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QUESTION IMAGE

inhibitory postsynaptic potentials (ipsps) are associated with which of…

Question

inhibitory postsynaptic potentials (ipsps) are associated with which of the following?
multiple choice
depolarization of the cell membrane
repolarization of the cell membrane
hyperpolarization of the cell membrane
no change in the cell membrane potential
no change of the threshold

Explanation:

Brief Explanations

Inhibitory postsynaptic potentials (IPSPs) occur when neurotransmitters bind to receptors on the postsynaptic neuron. This binding leads to the opening of ion channels, typically for chloride ($Cl^-$) ions. When $Cl^-$ ions flow into the neuron (or potassium ($K^+$) ions flow out), the inside of the neuron becomes more negative relative to the outside. This makes the neuron less likely to fire an action potential. Hyperpolarization is the process of making the membrane potential more negative. Depolarization makes it less negative (more positive), repolarization is the return to the resting potential after depolarization, and no - change options are incorrect as IPSPs do cause a change in membrane potential.

Answer:

Hyperpolarization of the cell membrane