Which of the following statements are true of electrical changes at the sarcolemma (Select all that apply)
A)A polarized muscle fiber has more Na+ ions inside that outside.
B)Depolarization is the movement of K+ ions into the cell.
C)Repolarization is the movement of Na+ ions out of the cell.
D)A polarized muscle fiber has a positive charge inside and a negative charge outside.
E)Depolarization is a reversal of charges; the cell has a positive charge outside and a negative charge inside.
F)An action potential is depolarization followed by repolarization.

Question

Quizplus · Accepted Answer

An action potential involves depolarization, where the inside of the cell becomes more positive, followed by repolarization, where the cell returns to its resting negative state.

Which of the Following Statements Are True of Electrical Changes