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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.

User SkyzohKey
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2 Answers

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Final answer:

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.

User Sandeesh
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4 votes

Answer:

As far as I understand, the answer is D.

User Taggon
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