After the depolarisation phase of an action potential, the resting potential is restored by ______. Question 15 options: A) the opening of voltage-gated potassium channels and the closing or inactivation of sodium channels. B) the opening of more voltage-gated sodium channels. C) a decrease in the membrane's permeability to potassium and chloride ions following closing of the chloride-potassium pump. D) a brief inhibition of the sodium-potassium pump.

Introduction An action potential is defined as a sudden fall or rise in the potential of the…

Answered: After the depolarisation phase of an…

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Biology

After the depolarisation phase of an action potential, the resting potential is restored by ______.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter13: The Nervous System

Section: Chapter Questions

Problem 3RQ: Define an action potential.

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

After the depolarisation phase of an action potential, the resting potential is restored by ______.

Question 15 options:

A)	the opening of voltage-gated potassium channels and the closing or inactivation of sodium channels.

B)	the opening of more voltage-gated sodium channels.

C)	a decrease in the membrane's permeability to potassium and chloride ions following closing of the chloride-potassium pump.

D)	a brief inhibition of the sodium-potassium pump.

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