The movement of ions across the cell membrane is needed to accomplish repolarization.What cell structure is used to prepare for depolarization?
A) Mitochondria
B) Nucleus
C) Endoplasmic reticulum
D) Sodium potassium pump

Question

Quizplus · Accepted Answer

The sodium-potassium pump plays a crucial role in preparing for depolarization by maintaining the concentration gradients of sodium and potassium ions across the cell membrane. This allows for the rapid movement of ions during the depolarization and repolarization phases of the action potential. The other cell structures listed (mitochondria, nucleus, endoplasmic reticulum) do not directly contribute to this process.

The Movement of Ions Across the Cell Membrane Is Needed