Question

'transpiration is both useful and harmful to plants'

justify the statement ​

Answer 1

It is beneficial to the plants due to its role in the ascent of sap, absorption and translocation of mineral salts and in the regulation of the temperature of plant tissues. However, transpiration also causes loss of water unnecessarily. ... Therefore, the process of transpiration is called a necessary evil.

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Answer 2

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•Why transpiration is useful to plants...

Transpiration provides water for the process of photosynthesis. Transpiration helps in cooling the structures of the plant when exposed to hot sunlight. Transpiration helps the cells to maintain their turgidity. Excess water is removed from the cells of the plant to prevent plant decay.

•Why transpiration is harmful to plants

Transpiration often results in water deficit (capillary water) which causes injury to the plants by desiccation. ... If such condition continues for some time, permanent water deficit (permanent wilting) may develop, which may be fatal to the plants

Hence,Justified...

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