Which One of the Following Is TRUE Regarding the Sodium-Potassium

question 121

Multiple Choice

Which one of the following is TRUE regarding the sodium-potassium pump?

• A) Cholesterol molecules within the plasma membrane pump sodium out of the cell and potassium into the cell.
• B) In order to reduce cell volume, the cell decreases the activity of the sodium-potassium pump.
• C) Because the sodium-potassium pump works on the principle of diffusion, it does not require energy.
• D) Increased activity of the sodium-potassium pump causes an increase in cell volume.
• E) In order to maintain a certain cell volume, the sodium-potassium pump exchanges three sodium ions for two potassium ions.

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