Examine the figure below.Once an action potential is triggered,________.
A)the interior of the cell becomes positively charged relative to the outside
B)the interior of the cell becomes negatively charged relative to the outside
C)all ion channels close
D)the cell soon reaches threshold

Question

Examine the figure below.Once an action potential is triggered,________. 
A)the interior of the cell becomes positively charged relative to the outside 
B)the interior of the cell becomes negatively charged relative to the outside 
C)all ion channels close 
D)the cell soon reaches threshold

Quizplus · Accepted Answer

When an action potential is triggered, there is a rapid and brief depolarization where the interior of the cell becomes positively charged relative to the outside. This is followed by repolarization where the interior becomes negatively charged again. Therefore, choice A is the best answer. Choices B, C, and D are not accurate as the opposite occurs after an action potential is triggered.

Examine the Figure Below