CAIE IGCSE Biology 6.2 Leaf Structure Questions

Practise labelling leaf cross-sections and linking epidermis, mesophyll, stomata and vascular tissues to photosynthesis.

Exam points

label cuticle, epidermis, palisade, spongy mesophyll, vascular bundle and stomata on sections
link palisade chloroplasts and spongy air spaces to light absorption and carbon-dioxide diffusion
explain how xylem supplies water, phloem removes sugars and guard cells regulate stomatal openings

Covered syllabus points

6.2.1—Most leaves have a large surface area 6.2.2—Following structures in the leaf 6.2.3—Structures listed in 6.2.2 adapt

[Maximum number: 1]

The diagram shows part of a cross-section of a leaf.
Which structure is a palisade mesophyll cell?

Figure for Question 1 — CAIE IGCSE Biology

A

A

B

B

C

C

D

D

[Maximum number: 4]

Fig. 2.1 is a diagram of a cross-section of part of a leaf.

Fig. 2.1

Fig. 2.1

Identify and explain how the structures labelled J and K are adapted for photosynthesis. J

K

[Maximum number: 1]

The diagram shows a cross-section of part of a leaf.

Figure for Question 3 — CAIE IGCSE Biology

What is the cell labelled X ?

A

epidermis

B

guard cell

C

palisade mesophyll

D

spongy mesophyll

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