Question

The loss of water prom leases of plants is called as –
(A) Translocation
(B) Transpiration
(C) Transfusion
(D) None of the above.

Answer 1

Hint: Pearls absorb a large quantity of water from the soil.
Only a small part of it is utilized by the plants is photosynthesis. The bulk of water is lost into the air prom the leers and other aerial parts of the plant.

Complete Answer:
- Translocation is the movement of materials in plants from the leagues to other parts of the part.
- Transfusion is the act of transferring donated blood, blood products are other hued into the circulatory system of a person are animals.
- Transpiration is the loss of water in the form of water vapour from, the leagues any other aerial parts of the plant.

Kinds of transpiration :
(1) From the leaves through the stomata (stomata transpiration)
(2) Directly from the surface of the leaves and stems.
(circular transpiration)
(3) From the lenticels which are the minute openings on the surface of old stems (lenticular transpiration)

Factors that affect transpiration:
A) External factors: Intercity of sunlight, temperature, velocity of wind, humidity, carbon dioxide, an Atmospheric pressure.

B) Internal factors: Water content of the leaves: If the water content of the leaves decreases due to insufficient absorption of water by the roots, the leaves will ad transpire –ration is reduced. Such reduction in transpiration is a natural mechanism of conserving water within the plant.

Hence the correct answer is option (B)Transpiration.

Note: Transpiration occurs through the stomata of leaves.
There are several methods for measuring transpiration.
Some of these are : Weighing method, Photometer method.