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Questions
Define the following term:
Transpiration
Define transpiration.
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Solution
Loss of water vapour through the stomatal openings of the leaves of a plant is termed as transpiration.
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The figure below represents the set-up at the start of certain experiment to demonstrate an activity of plants:
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(v) Why has the test-tube b without the plant, been taken in the experiment?

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Stomata of a plant open due to ______.
Entry of water into root hair is the demonstration of which of the following process?
The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Transpiration helps to cool the body of the plant.
