What is the primary role for the Na+/ K+ pump?
A) to create a polarized membrane in an excitable cell
B) to produce ATP while pumping Na+ and K+ against their concentration gradients
C) to pump Na+ and K+ down their concentration gradients out of the cell
D) the maintenance of Na+ and K+ concentrations once inside the membrane
E) the maintenance of Na+ and K+ concentrations on either side of the membrane
Correct Answer:
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