Biology 0610 · IGCSE · Leaf structure

Leaf structure — practice question

Fig. 3.1 shows a scanning electron micrograph of a vertical section through part of a broad bean leaf, Vicia faba.
(a(i))[2]

State the names of the tissues marked A and B.

(a(ii))[3]

Explain why this is needed for the functioning of the leaf cells.

(a(iii))[2]

Explain why leaves contain many interconnected air spaces.

(b(i))[2]

State two conditions that are likely to increase the chances of wilting.

(b(ii))[4]

Explain what happens to the cells of a leaf to cause wilting.

(b(iii))[2]

Suggest the advantages to a plant of wilting.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: A is the upper epidermis

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