Question

Differentiate between Transpiration and Evaporation.

Answer 1

DIFFERENTIATE BETWEEN TRANSPIRATION AND EVAPORATION

	Transpiration	Evaporation
1.	It is a physiological process	It is a physical process
2.	It occurs in plants.	It occurs on any free surface.
3.	Living cells are involved.	It can occur from both living and non-living surfaces.
4.	Water moves through epidermis or stomata.	Evaporation of any liquid can take place. No involvement of living epidermis or stomata.
5.	Various forces such as osmotic pressure, diffusion pressure, vapour pressure etc. are involved.	Not many forces are involved.
6.	It keeps the surface of leaf and young stem wet and protects it from sun burning.	It causes dryness of the free surface.

 

Answer 2

Evaporation is the process of conversion of water from the water bodies into water vapour. Whereas transpiration is the process of release of water vapour from the leaves through the openings known as stomata. It depends upon the moisture of the soil and the humidity of the atmosphere. The total water lost from the earth is the sum of evaporation and transpiration is called as Evapotranspiration.