00:01
Hello.
00:02
So the question given here is what features of a membrane are major contributors to its selective permeability? right.
00:12
So here few options are given like phospholipid balear, transport proteins, glycolipids on the outer surface of the membrane and option d, that is peripheral membrane proteins.
00:25
And option e is saying that both option a and b is correct.
00:29
So let's understand the word is.
00:31
Here what is selective permeability.
00:34
In very simple words we can understand it as selective permeability is that that allows only certain molecules certain molecules to enter or exit the cell.
01:04
Right.
01:05
So here we are talking about the cell membrane.
01:07
That is why it is selective permeability.
01:10
So the reason is that cell membrane is selective permeable because of its structure.
01:19
So let's understand that what is present there in its structure.
01:24
It has a phospholipid, phospholipid bilayer and with this some protein.
01:37
Plus we can say here some protein.
01:41
So this structure is sufficient to make membrane selective permeable.
01:48
And what we know here that this phospholipid bilayer, this is tightly packed and the membrane has a hydrophobic interior.
01:57
So here this phospholipid bilayer and proteins present, this is forming the structure of the membrane and this is sufficient to make the membrane.
02:07
Selective permeable.
02:08
Now if you look at the given options here we got option a that is phospholipid bi layer.
02:13
So yes this is correct...