Question

53. The process by which a tiny electrical current is generated when the positive sodium ions rush inside the axon, causing the inside of the axon to reverse its charge, is called:

(A) Action potential
(B) Ion potential
(C) Resting state
(D) Synapticstate
(E) Negative potential

Answer 1

The process described is known as an action potential, where the influx of sodium ions into an axon reverses its charge during neural transmission. The correct option is A.

Step-by-step explanation:

The process by which a tiny electrical current is generated when positive sodium ions rush inside the axon, causing the inside of the axon to change from a negative to a positive charge, is called an action potential.

This begins with the opening of sodium ion channels, allowing sodium to flow into the cell, followed by depolarization of the membrane as it moves closer to zero potential.

Subsequent repolarization occurs when potassium ion channels open, allowing potassium ions to leave the cell, and the inside of the membrane becomes negative again, returning the cell to its resting potential.