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AAT Bioquest

How does a cell maintain resting membrane potential?

Posted July 15, 2022


Answer

Leak channels in the cell membrane facilitate the movement of sodium and potassium ions into and out of the cells. The movement occurs down the gradient, from a higher concentration towards a lower concentration. The combined leakage of ions down the gradient and the ion pumping action of the sodium-potassium pump helps cells to create and maintain a stable resting membrane potential.  

Additional resources

Kir2.1 channels set two levels of resting membrane potential with inward rectification

Membrane Potential and Channels

Di-8-ANEPPS *CAS#: 157134-53-7*