2.21 Leaf structure and photosynthesis
Exam question
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Which layer of a leaf contains the most chloroplasts?
(1)Total for this question: 1 mark
2(e) NUTRITION · EXAM QUESTIONS
2.21 Leaf structure and photosynthesis
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2.21 Leaf structure and photosynthesis
Exam question
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Which feature allows carbon dioxide to reach cells inside a leaf?
(1)Total for this question: 1 mark
2.21 Leaf structure and photosynthesis
Exam question
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What is the function of the waxy cuticle?
(1)Total for this question: 1 mark
2.21 Leaf structure and photosynthesis
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Explain how the palisade layer is adapted for photosynthesis.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain why the upper epidermis is transparent.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain why leaves are thin.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain why leaves have a large surface area.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Describe the role of xylem in a leaf.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Describe the role of phloem in a leaf.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain the role of stomata in photosynthesis.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain why the spongy mesophyll has many air spaces.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Name the layers of a leaf, starting at the upper surface.
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Total for this question: 4 marks
2.21 Leaf structure and photosynthesis
Exam question
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Give three ways in which a leaf is adapted for photosynthesis.
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Total for this question: 3 marks
2.21 Leaf structure and photosynthesis
Exam question
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Suggest why most stomata are on the lower surface of a leaf.
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Total for this question: 2 marks
2.21 Leaf structure and photosynthesis
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Explain how guard cells control gas exchange.
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Total for this question: 2 marks