00:01
The first question is asking about the composition of plasma membrane.
00:05
And the answer for this question is option b, that is phospholipids.
00:10
Phospholipids are the molecules that help in the formation of bilayered plasma membrane.
00:15
The comparizes of hydrophilic head part as well as the hydrophobic tail part.
00:21
And the plasma membrane comprising of phospholipids are represented as follows.
00:26
These are the phospholipid molecules and this is the head part of the phospholipid.
00:32
And these are the tails of the phospholipid.
00:35
The second question is asking about the function of glycoproteins and glycolipids in the plasma membrane.
00:43
So glycoproteins and glycolipids are the oligosaccharides that are attached either to the phospholubids or the proteins present in the plasma membrane.
00:58
And these oligosecaryrites particularly help in the process called as cell -to -cell recognition, which further leads to intracellular signaling in the interacting cells.
01:08
So from the given information the correct answer for this question is option v.
01:17
The third question is asking about the function of transmembrane proteins.
01:22
So most of the transmembrane proteins act as gateway and permit the transport of specific substances across the plasma membrane.
01:36
Therefore they will act as receptors that bind to the specific molecules and either transport them to the other side of the plasma membrane.
01:48
Example of such receptors is the glute which is actually the glucose transporter or they can lead to the intracellular signaling and the example of the receptor that is involved in intracellular signaling is the gpca which is the g protein coupled receptor so from the given information the correct answer for this question is option c the fourth question is asking about which of the following classes of lipids that are not found in the plasma membrane so the lipid the liquids that are found in the plasma membrane includes phospholipid by layer, cholesterol, neutral fats, which are also called as true fats.
02:39
And the example of neutral fat is triglycerides that act as precursor for the synthesis of phospholipid.
02:48
The another class of lipids that may be found in the plasma membrane includes turpings, which are actually the simple lipids, whose presence in the plasma membrane provides fluidity.
03:02
So from the given information the correct answer for this question is option d.
03:09
That is hormones are not found in the plasma membrane, rather the hormone receptors are found in the plasma membrane, which are the receptors for lipid insoluble hormones.
03:18
The fifth question is asking about osmosis.
03:23
So osmosis is a type of diffusion and it involves the movement of water molecules.
03:29
From their high concentration to their low concentration and the process of osmosis do not require energy neither they require the help of any transporter.
03:44
So from the given information the correct answer for this question is option d.
03:50
The sixth question is asking about the name of the solution when the medium has high concentration of solute...