Point out the difference between diffusion and osmosis.

Diffusion

Osmosis

1. It is the movement of particles from the region of higher concentration to low concentration through the pores of medium.

1. It is a special form of diffusion where water molecules move from its higher concentration to its lower concentration across a semi-permeable membrane.

2. It is rapid in gases, slow in liquid and very slow in solids.

2. It occurs onli in liquids.

3. The rate of diffusion depends upon the intensity of gradient. Examples:

3. Its rate does not depend upon the gradient. Examples:

4. Exchange of O₂ and CO₂ in plants.

4. Absorption of water and mineral solution

2. Dispersion of CuSO₄ and KMnO₄crystal in water.

Absorption of water from the soil by the root hairs.