Question

A second action potential cannot be generated until ________.

a) the membrane potential has been reestablished
b) the Na ions have been pumped back into the cell
c) proteins have been resynthesized
d) all sodium gates are closed

Answer 1

"Action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane with a characteristic pattern."

It is the mode through which a neuron transports electrical signals.

Step-by-step explanation:

• Option - (a) is the best choice to choose from,

• The refractory period :

A second action potential cannot occur until the membrane has recovered or reestablished, this is the refractory period. The absolute refractory period coincides with inactivation of voltage-gated sodium channels which makes it impossible to generate another nerve impulse.