What does equilibrium in cellular transport mean?
A. The cell has used all its energy
B. The concentration of molecules is the same throughout an environment
C. The cell is actively transporting molecules
D. The cell is at rest
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What is the role of the sodium-potassium pump in cellular transport?
A. To facilitate the diffusion of sodium and potassium ions across the cell membrane
B. To produce ATP
C. To maintain the cell’s volume
D. To actively transport sodium and potassium ions across the cell membrane, maintaining a high concentration of potassium ions inside the cell and a high concentration of sodium ions outside the cell
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