How many types of membrane are found on the basis of their permeability?



(a) Impermeable membrane : These do not allow
the passage of substances through them.
(b) Permeable membranes: These allow the passage of
all types of susbtances through them.
© Semi-permeable membrane : These are the
membrane which permit the movement of only
solvent molecules.
(d) Differentially permeable membrane : These
membrane allow selective passage of solutes through them.