Diffusion vs Osmosis
(Difference between Diffusion and Osmosis)
Diffusion and Osmosis are the two methods in membrane transport by which the movement of materials in and out of the cell takes places.
Diffusion: Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration. Example: When a scent-bottle is opened in a room, quickly the fragrance will spread to the entire room by diffusion of the molecules through the air.
Osmosis: Osmosis is a type of diffusion in which the solvent molecules move into the solution through a semi-permeable membrane. Example: Plasmolysis of a cell when it is placed in a sugar or salt solution.