Explain the Function of Sodium-Potassium Ion Pumps

question 96

Multiple Choice

Explain the function of sodium-potassium ion pumps.

• A)They generate ATP for the cell during the electron transport chain when hydrogen ions move in a process known as chemiosmosis.
• B)The sodium-potassium ion pump binds acetylcholine across the synaptic cleft to generate an action potential at the sarcolemma.
• C)The sodium-potassium ion pump allows facilitated diffusion of potassium during the repolarization of a muscle cell.
• D)The sodium-potassium ion pump allows facilitated diffusion of sodium during the depolarization of a muscle cell.
• E)The sodium-potassium ion pump maintains the resting membrane potential of a cell by exporting three sodium ions out in exchange for two potassium ions entering the cell.

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