Biology 5090 · O Level · Leaf structure

Leaf structure — practice question

A species of plant is found in ponds. The diagrams present the complete plant and a transverse section through one of its leaves.
(a(i))[1]

Suggest one benefit to the plant of having its leaves floating on the water surface.

(a(ii))[2]

Give the names of the leaf parts labelled A and B. A [BLANK] B [BLANK]

(a(iii))[3]

Using parts A and B as a reference, describe and explain how the leaf structure is adapted to life in a pond environment.

(b)[1]

The plant belongs to a pond food web. State its trophic level.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: light plus carbon dioxide for photosynthesis (AW)

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