A second nerve impulse 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

Question

Quizplus · Accepted Answer

After a nerve impulse, the membrane potential of a neuron needs to be reestablished before another impulse can be generated. This occurs through the action of the sodium-potassium pump, which pumps sodium ions out of the cell and potassium ions into the cell, restoring the resting membrane potential. Once this is complete, another nerve impulse can be generated. The other options (B, C, D) are not necessary for a second nerve impulse to be generated.

A Second Nerve Impulse Cannot Be Generated Until ________