During the repolarization phase of an action potential what...

During the repolarization phase of an action potential, what ions are being transported through the cell membrane? A) Potassium ions from inside of the cell, to the outside of the cells, through voltage sensitive potassium channels B) Sodium ions from outside of the cell to the inside of the cells, through sodium channels C) Sodium ions from inside of the cell to the outside of the cells, through sodium channels D) Potassium ions from outside of the cell, to the inside of the cells, through voltage sensitive potassium channels

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00:01 Hello, hi students, let me explain you the question.

00:03 So here, during the repolarization phase of action potential, repolarization phase of action potential, action potential, what ions are transported through cell membrane, what ions are transported through cell membrane, through cell membrane.

00:27 So first of all, i want to tell you what is meant by repolarization.

00:32 So repolarization.

00:35 Repolarization.

00:36 It is a stage.

00:38 Repolarization, it is a stage of action potential.

00:43 So in this particular stage, cell experience decrease of voltage.

00:49 Decrees of voltage.

00:52 What the cell experience, decrease of voltage.

00:56 That means, why decrease of voltage means? because due to the efflux of potassium ions.

01:01 Reflex of potassium ions through voltage sensitive potassium channels through voltage sensitive potassium channels along its electrochemical gradient along its electrochemical gradient so that means that means here why the voltage it becomes decreased because from inside of the cell the the potassium ions it were from inside to outside so moment of the potassium ions from inside to outside outside through voltage sensitive potassium channels these are the voltage sensitive potassium channels so here the polarization phase it occurs when the cell cell reaches the highest voltage.

02:10 So when cell reaches highest voltage, so it has to now the cell is at the highest voltage...

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