All of the following correctly describe the sodium-potassium pump EXCEPT: a. A total of five binding sites are present in the sodium-potassium pump b. Energy is required for the process to take place c. Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid d. Molecules are pumped from low concentration to high concentration e. The transport proteins will undergo some conformational changes
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A total of five binding sites are present in the sodium-potassium pump: This statement is incorrect. There are three binding sites for sodium ions and two binding sites for potassium ions, making a total of five binding sites. Show more…
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Adi S.
The sodium-potassium pump moves Multiple Choice sodium ions out of the cell and potassium ions into the cell. sodium ions into the cell and potassium ions out of the cell. sodium and potassium ions into the cell. sodium and potassium ions out of the cell. sodium and potassium ions in both directions across the cell membrane.
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3. Why is active transport necessary for the sodium-potassium pump to work? A. The sodium would never leave a cell while potassium can move against the gradient B. The potassium would never leave a cell while sodium can move against the gradient C. It allows sodium and potassium to move against their concentration gradient D. All channel movement requires active transport to equalize the cell
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