00:01
Hello everyone.
00:01
So today the question that is given to us is talking about that what will happen if we increase the concentration of k plus ions in the cell.
00:10
How it will affect to the or it will change the cell's membrane potential.
00:16
And in order to answer that first we need to know that how it is how the exchange of ions is going to affect the membrane potential.
00:25
So for that, let's say we have this is this membrane here.
00:31
This is the extracellular region and here we have the intracellular region.
00:39
That means the movement either from extracellular region to intracellular region or intracellular region to extracellular region.
00:46
So it is totally depend upon the ions.
00:49
If we have a resting potential, so if we talk about as i told you resting potential, that means the movement of ions here are equal.
00:58
That means we can say here that n .a.
01:02
Plus is going to move out from the membrane and k plus is going to enter into the membrane.
01:08
It is what we call the resting potential where the exchange of ions are basically at optimum condition and the concentration of k plus is basically maximum inside this.
01:22
Then eventually if the concentration of na plus increases inside the cell, like here, we will have more n a plus inside the cell and there will be less movement of k plus outside.
01:36
But eventually the comparison here is that there will be more na plus inside.
01:41
That means more sodium and inside the cell.
01:44
So that will create what we can say depolarization.
01:49
The membrane will be depolarized.
01:54
And this is what we call the depolarization...