Cambridge IGCSE Biology practice

Paper 3 structured question: Leaf structure

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Paper

Marks

Topic

Leaf structure

Exam-style question

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Paper 3Theory (Core)2 marks

Leaf structure and photosynthesis

Diagram Description

A diagram shows a cross-section of a leaf with labeled parts: upper epidermis, palisade mesophyll, spongy mesophyll, lower epidermis with stomata.

a
Explain how the palisade mesophyll cells enhance the leaf's ability to perform photosynthesis.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)2 marks

Diagram Description

A diagram shows a cross-section of a leaf with labeled parts: upper epidermis, palisade mesophyll, spongy mesophyll, lower epidermis with stomata.

b
Explain how the stomata enhance the leaf's ability to perform photosynthesis.
Your answer
Aim for approximately 2 distinct marking points.
[2]