ConceptConceptDocsDocuments

CAIE IGCSE Biology 6.2 Leaf Structure

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

Syllabus
2026–2028
Course
Biology 0610

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 area6.2.2—Following structures in the leaf6.2.3—Structures listed in 6.2.2 adapt

6.2 Leaf structure question 1

[Maximum number: 5]

Question (a)

(a)

Fig. 4.1 is a photomicrograph of a cross section of part of a leaf.

Fig. 4.1

Fig. 4.1

[ 5 ]

Question (i)

(i)

Identify the tissue labelled A in Fig. 4.1.

[ 1 ]

Question (ii)

(ii)

Identify the structure labelled C in Fig. 4.1.

[ 1 ]

Question (iii)

(iii)

Describe how the tissue labelled B is adapted to maximise photosynthesis.

[ 3 ]
All question bank results loaded