All the Following Statements Concerning the Na⁺-K⁺ Pump Are Correct

question 50

Multiple Choice

All the following statements concerning the Na⁺-K⁺ pump are correct EXCEPT which one?

• A)The phosphorylated conformation of the Na⁺-K⁺ pump has high affinity for K⁺ when exposed to the ICF.
• B)The Na⁺-K⁺ pump has ATPase activity.
• C) The Na⁺-K⁺ pump establishes Na⁺ and K⁺ concentration gradients across the plasma membrane; these gradients are critically important in the ability of nerve and muscle cells to generate electrical impulses essential to their functioning.
• D) The Na⁺-K⁺ pump helps regulate cell volume by controlling the concentration of solutes inside the cell to minimize osmotic effects that would induce swelling or shrinking of the cell.

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