Difference between diffusion and osmosis

QuestionsCategory: Difference BetweenDifference between diffusion and osmosis
Biology Ease Staff asked 8 months ago
Diffusion Osmosis
Movement of molecules from an area of higher concentration to an area of lower concentration Movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane
Can occur in any medium (air, liquid, gas) Occurs only in liquid or gas
Does not require a semi-permeable membrane Requires a semi-permeable membrane
Can occur in both living and non-living systems Mainly occurs in living systems
Does not involve the movement of water molecules Involves the movement of water molecules
Does not require energy Does not require energy, but may require pressure
Examples include the movement of gases in the lungs and the diffusion of perfume in a room Examples include the movement of water in plant cells and the movement of water and ions in the kidneys