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Biology · May / June 2019 · Paper 12 · Question 3

5090Diffusion and osmosis

The diagram shows some cells in the root of a plant that is absorbing water from the soil. How does the water potential of the cell marked 2 differ from the water potentials of the cells marked 1 and 3?

  1. Ahigher than cell 1 and higher than cell 3
  2. Bhigher than cell 1 and lower than cell 3
  3. Clower than cell 1 and higher than cell 3
  4. Dlower than cell 1 and lower than cell 3

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Correct answer: C. lower than cell 1 and higher than cell 3

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