Question

Which of the following statements about action potential is false?

(a) Na^+/K^+ pumps are directly involved in creating the action potential

(b) Na^+ and K^+ concentrations are not significantly changed during an action potential

(c) This includes both positive and negative feedback loops

(d) Only a relatively small number of Na^+ and K^+ actually diffuse across the membrane

I have been asked this question in an online interview.

My question comes from Gated Ion Channels in division Biosignalling of Biochemistry

Answer 1

Right answer is (b) Na^+ and K^+ concentrations are not significantly changed during an action potential

Explanation: The concentration of K^+ is higher inside and concentration of Na^+ is more outside.