For the following questions, refer to the graph of an action potential.

-The membrane's permeability to sodium ions is at its maximum at label
A) A.
B) B.
C) C.
D) D.
E) E.

Question

For the following questions, refer to the graph of an action potential.
 
-The membrane's permeability to sodium ions is at its maximum at label
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Quizplus · Accepted Answer

The peak of the action potential occurs at label B, which corresponds to the point when the membrane's permeability to sodium ions is at its maximum. During this time, sodium ions rush into the cell, causing the depolarization phase of the action potential.

For the Following Questions, Refer to the Graph of an Action