Question

Which of the following is not a function of transpiration?

• A. Uptake of water
• B. Evaporation of water
• C. Uptake of minerals
• D. Excretion of minerals

Answer 1

The correct option is D Excretion of minerals

Evaporation of water and uptake of minerals and water is a function of transpiration.

Transpiration causes water to take up the heat of the organs or the energy from sunlight and convert into water vapour causing evaporation of water.

Transpiration pull helps in ascent of xylem sap and hence helps in transportation of water and minerals.

Since water vapours are lost through transpiration, the minerals are left behind as they cannot evaporate along with water.

So the correct answer is 'Excretiom of minerals'.