PHYSIO -CHEMICAL NATURE OF PLASMA MEMBRANE
rubabThe plasma membrane surrounds the cell. Chemically plasma membrane is composed of: (a) Protein: 60 to 80% (b) Phospholipids: 20 to 40% (e) Cholesterol in small amount (d) Carbohydiutes in…
MODEL SUBJECTIVE QUESTIONS FOR DIFFUSION, OSMOSIS, ABSORPTION
sanaWhat is diffusion? Give factors affecting the rate of diffusion. What is imbibition? Give its significance? What is osmosis? Give its demonstration. Give factors affecting osmosis. Describe water relations. What…
OSMOSIS
The movement of solvent molecules from the region of higher concentration to the region of lower concentration through semi permeable membrane is called osmosis. Demonstration A thistle funnel is filled…