Question

The effect of Kir2.1 channels on a neuron is to depolarization

Answer 1

stabilize the neuron's resting membrane potential. Kir2.1 channels are inwardly rectifying potassium channels, meaning they are more permeable to potassium ions moving into the cell than out of the cell. This allows for a steady flow of potassium ions into the cell, which helps counteract any depolarizing currents that may be trying to disrupt the cell's resting membrane potential. Overall, Kir2.1 channels play a crucial role in maintaining the stability of a neuron's membrane potential and preventing excessive depolarization.