Question

Discuss the role of osmosis in the physiology of a plant.

Answer 1

Osmosis:

Osmosis is referred to the diffusion of solvent molecules across a semipermeable membrane from a region of higher water concentration toward a region of lower water concentration.

Role of osmosis in plants:

1. Osmosis helps in the absorption of water molecules from the soil by the root hairs.
2. Osmosis maintains the turgidity of plant cells and therefore, maintains the structure of the plant parts.
3. It also helps in water transport across the cells. The water molecules move between cells through a semipermeable membrane.