Question

Explain the importance of transpiration in plants.

Answer 1

1. Transpiration increases the concentration of cell sap within a leaf. Cells in this state take in water from adjacent cells, then from the leaf’s xylem vessels, followed by the stem, and finally from the root. This transpiration stream facilitates the upward movement of water.
2. Mineral salts taken up with water are subsequently transported to different regions of the plant due to transpiration.
3. Transpiration enhances the rate of water absorption by increasing the sap concentration within the leaves.
4. The rapid evaporation of water from the leaf’s surface and the subsequent absorption of latent heat from the leaf’s tissue maintain the leaf’s temperature at safe levels when exposed to direct sun.