00:01
Hello everyone, so here the practice questions is given based on the diffusion and osmosis, diffusion and osmosis.
00:15
So the first question here asked is osmosis is the dash, osmosis is the dash.
00:25
So choices are given so this osmosis means it is the diffusion of water molecules diffusion of water molecules, water molecules across a selectively permeable membrane, across a selectively permeable membrane.
00:58
So the correct answer is option e, that is osmosis is the diffusion of water molecules across a selectively permeable membrane.
01:11
Now second question here asked is diffusion, diffusion of molecules, molecules occurs dash, diffusion of molecules occur dash.
01:26
So the diffusion means it is the movement of water molecules from a high concentration region or high concentration area, high concentration area to a low concentrated area, to a low concentrated area without any atp.
01:51
So here we can see that this is down a concentration gradient that is from a high concentration to a low concentration region.
01:59
So here the correct answer is option c, that is diffusion of molecule occurs down a concentration gradient, down a concentration gradient.
02:16
Now third question here asked is the concentration of solutes, concentration of solutes outside the cell, outside a cell is lower, lower than the concentration of solutes in the cytoplasm of the cell.
02:43
So the concentration of solutes outside a cell is lower than the concentration of solutes in the cytoplasm.
02:50
So to answer this we look at a figure.
02:55
So here we can see the hypotonic solution and the isotonic solution and the hypertonic solution and inside there is a cell.
03:04
So this is the this is the cell.
03:10
Now the this yellow part is the solute and the water molecules seen.
03:16
So here our question says that the concentration of solute outside a cell is lower.
03:22
So here we can say that the solute concentration outside the cell is lower than the concentration of solutes in the cytoplasm...