Question

Which of the following is/are advantage(s) of transpiration?

• A. cooling
• B. Loss of nutrient
• C. Loss of water
• D. Ascent of sap

Answer 1

Answer: (A), (C)

The correct options are
A

cooling

C

Loss of water

Water is lost due to transpiration in the form of water vapour. The loss of water as vapour has a cooling effect on the plant. As water continuously evaporates from the leaf surface, the roots pull more water from the soil to make up for the loss of water during transpiration. As a result, a transpirational pull is created. Carbon dioxide is absorbed from the atmosphere and oxygen is released during the process of photosynthesis.