Refer to the following graph of an action potential to answer the question. At label ________, the cell is not hyperpolarised; however, repolarisation is in progress, as the sodium channels are inactivated or becoming inactivated, and many potassium channels have opened.
A) B
B) C
C) D
D) E Disallow randomisation

Question

Refer to the following graph of an action potential to answer the question.  At label ________, the cell is not hyperpolarised; however, repolarisation is in progress, as the sodium channels are inactivated or becoming inactivated, and many potassium channels have opened.
A) B 
B) C 
C) D 
D) E Disallow randomisation

Quizplus · Accepted Answer

Label B shows the phase of the action potential where the cell is not hyperpolarized but repolarization is in progress, as the sodium channels are inactivated or becoming inactivated, and many potassium channels have opened. This is the beginning of the falling phase of the action potential.

Refer to the Following Graph of an Action Potential to Answer