Introductory Crop Physiology (1+1)

Significance of Osmosis in Plants

Significance of diffusion

1. Large quantities of water are absorbed by roots from the soil by osmosis
2. Cell to cell movement of water and other dissolved substances involves osmosis
3. Opening and closing of stomata depend upon the turgor pressure of guard cells.
4. Due to osmosis, the turgidity of the cells and hence the shape or form of the organs is maintained.
5. The resistance of plants to drought and frost increases with increase in osmotic pressure.
6. Turgidity of the cells of the young seedling allows them to come out of the soil.