Question 29
Select the odd one out
(a) The movement of water across a semi-permeable membrane is affected by the amount of substances dissolved in it.
(b) Membranes are made of organic molecules like proteins and lipids
(c) Molecules soluble in organic solvents can easily pass through the membrane.
(d) Plasma membranes contain chitin sugar in plants
(d) Plasma membranes contain chitin sugar in plants
Chitin is present in the cell wall of fungi and algae.The plasma membrane in plants is a selectively permeable membrane made up of a lipid bilayer and proteins surrounding the cell but inside the cell wall.