Question

Differentiate between osmosis and diffusion?

Answer 1

OSMOSIS	DIFFUSION
Osmosis involves the movement of the solvent from a lower concentration of solute to a higher concentration of solute.	Diffusion involves the movement of molecules from a higher concentration of solute to a lower concentration of solute.
Osmosis takes place across a semi permeable membrane.	Diffusion can occur without a semi permeable membrane.
Eg: Dried raisins when kept in water swell up due to water entering the raisin cells via osmosis.	Eg. Oxygen enters the cell via diffusion when the level of oxygen decreases inside the cell.