What is the primary function of the sodium-potassium pump in maintaining cell homeostasis?
A.
A. To move sodium and potassium ions into the cell simultaneously.
B.
B. To transport potassium ions into the cell and sodium ions out of the cell against their concentration gradients.
C.
C. To facilitate the passive diffusion of sodium and potassium ions across the cell membrane.
D.
D. To provide energy for other active transport processes in the cell.
Exam No：AP Biology Problem Set 4 Year：2024 Question No：AP Biology2024AP0334
Answer:
B
Knowledge points:
2.7 Facilitated Diffusion
Solution:
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