A-LevelBiologyTransport in plants9700/12 · May/June 2023 · Q291 Mark

The diagram shows the outline of three xerophytic leaves of the same type in three different conditions, P, R and S. [Figure 29.1] Which description of the water potential of the cells in layer Y is correct?

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AP: higher than R and S; R: lower than P and S; S: lower than P

BP: higher than S; R: lower than P; S: higher than P

CP: lower than R; R: higher than S; S: higher than R

DP: lower than R and S; R: higher than P; S: lower than P

✓ Correct answer

A: P: higher than R and S; R: lower than P and S; S: lower than P

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Topic: Transport in plants, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2023 Paper 1 Variant 2, question 29.

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