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 Gaseous Exchange Questions and Answers: Form 2 Biology

A group of form two students placed a fresh leaf in warm water. They observed that air bubbles formed on the surface of the leaf.
(a) What biological process were they investigating?
(b) Name the structures from which the air
bubbles were coming from.
(c) Explain the distribution of the structures named in (b) above on the leaf surfaces of a land plant.

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