Define Osmosis. What are different types of osmosis And Give examples of osmosis
Define Osmosis. What are different types of osmosis? Give examples of osmosis.
Answer: Osmosis is a special type of diffusion i.e. passage of water (solvent) across a selectively permeable membrane, from a region of high water
concentration (dilute solution) to the region of low water concentration (concentrated solution).
Osmosis is also a passive transport i.e. no external energy is required for the passage.
There are two type of osmosis:
1. Endosmosis: The process in which the water molecules enter into the cell is known as endosmosis.
2. Exosmosis: The process in which the water molecules move out of the cell is known as exosmosis.
Examples of Osmosis are:
1.Absorption of water by plant roots. 2.Absorption of water by alimentary canal.
3.Re-absorption of water by tubules of the nephron in kidneys.