What happens at the sodium-potassium exchange pump?
A) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 3 sodium ions for every 2 potassium ions entering the cell.
B) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 2 sodium ions for every 3 potassium ions entering the cell.
C) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 3 potassium ions for every 2 sodium ions entering the cell.
D) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 2 potassium ions for every 3 sodium ions entering the cell.
E) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 1 sodium ions for every 6 potassium ions entering the cell.
Answer: A
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