What is the function of the sodium-potassium pump?

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Multiple Choice

What is the function of the sodium-potassium pump?

Explanation:
The sodium-potassium pump is an active transporter that uses energy from ATP to move ions against their gradients. For each cycle, it pumps three sodium ions out of the cell and two potassium ions into the cell. This ion exchange maintains the inside of the cell as more negative than the outside (the resting membrane potential) and helps regulate cell volume by controlling osmotic balance. It also sustains the electrochemical gradients that enable secondary active transport. It doesn’t synthesize ATP or break down sugars, which is why those functions aren’t correct.

The sodium-potassium pump is an active transporter that uses energy from ATP to move ions against their gradients. For each cycle, it pumps three sodium ions out of the cell and two potassium ions into the cell. This ion exchange maintains the inside of the cell as more negative than the outside (the resting membrane potential) and helps regulate cell volume by controlling osmotic balance. It also sustains the electrochemical gradients that enable secondary active transport. It doesn’t synthesize ATP or break down sugars, which is why those functions aren’t correct.

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