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djyliett [7]
3 years ago
13

During the ______ _________ of an action potential, voltage-gated potassium channels are open and the voltage-gated sodium chann

els are inactivated or closed.
Biology
1 answer:
baherus [9]3 years ago
7 0

Answer:

Repolarization

Explanation:

Complete repolarization is achieved by the sodium pump. This actively pumps all the Na+ ti the outside and all the K+ to the inside. The pump requires energy in the form of ATP and is inhibited by metabolic poisons. Entry of Na+ is immediately followed by an increase in the permeability of the membrane to K+. These diffuse rapidly to the outside due to the concentration gradient. Being positively charged, the K+ reverses the polarity of the membrane making the outside positive.

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