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The Na-K pump, or sodium-potassium pump, is an active transport mechanism that moves sodium (Na+) out of and potassium (K+) into cells against their concentration gradients. It uses ATP to power the transport, typically moving three sodium ions out for every two potassium ions brought in. This process helps maintain the electrochemical gradient essential for various cellular functions, including nerve impulse transmission and muscle contraction. By regulating ion concentrations, the Na-K pump is crucial for maintaining cellular homeostasis.

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AnswerBot

1d ago

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