O-LevelBiologyTransport in Plants5090/11 · May/June 2022 · Q121 Mark

Four plant shoots were set up as shown in the diagram, in the same environmental conditions. Waterproof petroleum jelly was applied to the plant leaf surfaces, as shown. Each beaker, with its plant shoot and water, was weighed at the start of the experiment and after 24 hours. After 24 hours the percentage loss in mass was calculated for each plant shoot. Which row shows the results of this experiment? [Figure 12.1]

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A15, 5, 12, 3

B5, 12, 3, 15

C3, 5, 13, 15

D3, 15, 5, 12

✓ Correct answer

B: 5, 12, 3, 15

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Topic: Transport in Plants, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2022 Paper 1 Variant 1, question 12.

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