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.
Frequently asked questions
What is the correct answer to this question?
Loss of water vapour from leaves
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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