Question

Which of the following processes results in the loss of water in the form of water vapour through stomata.

• A. Wilting
• B. Transpiration
• C. Osmosis
• D. Diffusion

Answer 1

The correct option is B

Transpiration

The correct option is b

Explanation of the correct option:

1. Transpiration is the biological process by which water is lost in the form of water vapour from the aerial parts of the plants.

Explanation of the incorrect option:

Option a:

1. Wilting is the loss of turgidity of leaves and other soft aerial parts causing drooping, folding and rolling.

Option c:

1. Osmosis is the process by which solvent molecules pass from a solution of lower concentration to a solution of higher concentration through a semipermeable membrane.
2. It is a passive process which takes place without any expenditure of energy.

Option d:

1. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration.
2. The material that diffuses could be a solid, liquid or gas.
3. Similarly, the medium in which diffusion occurs could also be in one of the three physical states.

Final answer: Transpiration processes results in the loss of water in the form of water vapour through stomata.