To Maintain the Resting Potential of the Nerve Cell Membrane

question 219

Multiple Choice

To maintain the resting potential of the nerve cell membrane, the sodium‒potassium pump keeps the concentration of

• A) K⁺ and Na⁺ inside the cell lower than in the extracellular fluid.
• B) Na⁺ inside the cell greater than outside the cell, and that of K⁺ inside the cell lower than outside the cell.
• C) K⁺ inside the cell greater than in the extracellular fluid, and that of Na⁺ inside the cell lower than outside the cell.
• D) Na⁺ and K⁺ inside the cell greater than outside the cell.
• E) negative ions higher inside the cell by pumping negative ions across the membrane.

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