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

Question 71

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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