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

question 138

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

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