U.C.E BIOLOGY 2003 PAPER 1 QN 33

Figure 2 shows an internal structure of a leaf.

a) Labe the layers marked a, b, c and d on the diagram.

b) Give three differences between layers b and c.

Layer b  Layer c

(i) ……………………

(ii) …………………..

(iii) ………………….

………………….

………………….

………………….

c) Using evidence from the diagram, describe how the structure of a leaf is suited for photosynthesis.

d) What is the importance of wax on layer (a)?

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