A sodium-potassium pump is an example of a carrier protein. Which of the followi

Question

A sodium-potassium pump is an example of a carrier protein. Which of the following is true about the sodium-potassium pump? Potassium moves down its electrochemical gradient while sodium is transported against its electrochemical gradient. Sodium moves down its electrochemical gradient while potassium is transported against its electrochemical gradient. Both sodium and potassium are transported against their electrochemical gradients, powered by ATP. Both sodium and potassium are transported down their electrochemical gradients, and no energy is required. None of the above is true.

Explanation / Answer

Both sodium and pottasium are transported down thier electrochemical gradient powered by ATP

Note- Na -K pump is most common found as active transport it is bound to membrane ATPase as the carrier molecule i.e an enzyme that catalyze the hydrolysis of ATP . Three molecule of Na and two of K move down thier concentration gradient

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