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Biology · May / June 2020 · Paper 11 · Question 5

5090Leaf structure

The diagram shows a transverse section through a leaf. What are the functions of the parts labelled 1, 2, 3 and 4?

  1. A1 gaseous exchange; 2 transporting sucrose; 3 transporting water; 4 photosynthesis
  2. B1 gaseous exchange; 2 transporting water; 3 transporting sucrose; 4 photosynthesis
  3. C1 photosynthesis; 2 transporting sucrose; 3 transporting water; 4 gaseous exchange
  4. D1 photosynthesis; 2 transporting water; 3 transporting sucrose; 4 gaseous exchange

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Correct answer: D. 1 photosynthesis; 2 transporting water; 3 transporting sucrose; 4 gaseous exchange

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