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Biology · May / June 2020 · Paper 12 · Question 3

5090Transpiration and translocation

The diagram shows the movement of water through part of a leaf. Which processes are involved in the movement of water at these stages?

  1. A1–2 diffusion; 3–4 evaporation; 4–5 osmosis
  2. B1–2 evaporation; 3–4 diffusion; 4–5 osmosis
  3. C1–2 osmosis; 3–4 diffusion; 4–5 evaporation
  4. D1–2 osmosis; 3–4 evaporation; 4–5 diffusion

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Correct answer: D. 1–2 osmosis; 3–4 evaporation; 4–5 diffusion

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