Refer to the following graph of an action potential to answer the question. Which Roman numeral in the graph indicates the minimum graded depolarization needed to operate the voltage-gated sodium and potassium channels?
A) I
B) II
C) IV
D) V

Question

Refer to the following graph of an action potential to answer the question.  Which Roman numeral in the graph indicates the minimum graded depolarization needed to operate the voltage-gated sodium and potassium channels?
A) I 
B) II 
C) IV 
D) V

Quizplus · Accepted Answer

The Answer is A

Refer to the Following Graph of an Action Potential to Answer