Question

describing the sodium-potassium pump
complete the statement to describe the sodium-potassium pump.
the sodium-potassium pump moves
ions into the cell and
ions out of the cell.

Explanation:

The sodium - potassium pump is a vital membrane transport protein. Its function is to actively transport ions against their concentration gradients. Specifically, it moves 2 potassium ($K^+$) ions into the cell and 3 sodium ($Na^+$) ions out of the cell, using ATP energy. This process helps maintain the electrochemical gradient across the cell membrane, which is crucial for functions like nerve impulse transmission and muscle contraction.

Answer:

The sodium - potassium pump moves potassium (or $K^+$) ions into the cell and sodium (or $Na^+$) ions out of the cell.