A drug that blocked the Na+/K+ ATPase would have what effect on ion concentrations and the membrane potential?
a. The ion concentrations across the membrane would immediately equalize and the membrane potential would go to zero.
b. Ion concentrations would slowly equalize, and over time, the membrane potential would become more negative.
c. Ion concentrations would slowly equalize, and over time, the membrane potential would go toward zero.
d. Ion concentrations would not change, but the membrane potential would go to zero.
Answer: c. Ion concentrations would slowly equalize, and over time, the membrane potential would go toward zero.
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