Question

PLZ HELP QUICKLY

What is an action potential?
A. An action potential is a sudden reversal of the electrical charge across the membrane of a resting neuron.
B. An action potential is a slow reversal of the electrical charge across the membrane of a resting neuron.
C. An action potential is a sudden reversal of the chemical charge across the membrane of a resting neuron.
D. An action potential is a sudden reversal of the electrical charge across the membrane of an active neuron.

Answer 1

An action potential is a sudden reversal of the electrical gradient across the plasma membrane of a resting neuron. It is triggered by a chemical signal and travels down the neuron's axon as an electric current.

Step-by-step explanation:

An action potential is a sudden reversal of the electrical gradient across the plasma membrane of a resting neuron. It begins when the neuron receives a chemical signal from another cell or some other type of stimulus. The action potential travels rapidly down the neuron's axon as an electric current.

Answer 2

As far as I understand, the answer is D.