The Sodium - Potassium Pump
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What does Sodium do?
helps maintain cell volume
Decrease in cell volume
less water in cytoplasm by increasing pumping and expelling more sodium ions
Sodium
potassium pumps expels unwanted ions, keeps needed one and maintains cell volume
Increase in cell volume
Increase in water in cytoplasm by decreasing pumping and allowing more sodium inside cell
ATP is used for what?
to expel 3 sodium ions for every 2 potassium ions brought into the cell