What do you mean by the sodium-potassium pump?
(N/A) The sodium-potassium pump is a biological mechanism that maintains a significant concentration gradient of $Na^+$ and $K^+$ ions across the cell membrane. It actively transports $3$ $Na^+$ ions out of the cell and $2$ $K^+$ ions into the cell against their respective concentration gradients,utilizing energy from the hydrolysis of $ATP$.
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