If a Cell's Na⁺/ K⁺ pump Worked in Reverse and Had

question 65

Multiple Choice

If a cell's Na⁺/ K⁺ pump worked in reverse and had more leak channels for Na⁺ than for K⁺, what would the ion concentrations of the cell look like?

• A) Intracellular Cl ^-would be increased, following Na⁺.
• B) Intracellular anions would decrease in number.
• C) Intracellular concentration of K⁺ would still be higher than Na⁺ because the body tries to maintain an extracellular concentration of Na⁺ at 145 mM.
• D) The cell would swell since water follows Na⁺.
• E) Although the body tries to maintain an extracellular concentration of Na⁺ at 145mM, the intracellular concentration of Na+ would still be higher.

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Definitions:

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