If Na⁺ channels open and sodium ions diffuse into the cell, A) the cell will become hyperpolarized. B) other sodium ions will move out of the cell. C) voltage-gated channels will remain closed. D) the charge across the nearby membrane will change. E) action potentials will be triggered.

Question

Quizplus · Accepted Answer

Na+ ions diffusing into the cell will change the charge across the nearby membrane, which is the basis for the generation of an action potential. Since the question does not mention any other ion channels opening or closing, we cannot assume that the cell will become hyperpolarized or that other sodium ions will move out of the cell. Furthermore, voltage-gated channels are not mentioned, so we cannot assume whether they will remain closed or open. Therefore, the best choice is D.

If Na+ Channels Open and Sodium Ions Diffuse into the Cell

If Na⁺ Channels Open and Sodium Ions Diffuse into the Cell