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What is transpiration in plants?

Answer and explanation

Correct answer: Loss of water vapour from leaves

The governing concept is transpiration, the loss of water vapour from the aerial parts of a plant, especially leaves, through stomata. Water absorbed by roots reaches the leaves, and some of it evaporates from moist leaf surfaces before diffusing out through open stomata. Hence option A gives the correct definition. The other choices describe impossible or unrelated processes: roots do not normally make food, flowers do not drink oxygen, and seeds do not form blood.

Related tags

TranspirationStomataWater VapourLife ProcessesWorld Of LivingScienceClass 10 Mcq

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