O-LevelBiologyPlant Nutrition5090/11 · May/June 2014 · Q71 Mark

The diagrams show an experiment to find the rate of photosynthesis in an aquatic plant in different conditions. Which plant produces the most bubbles per minute? [Figure 7.1]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ADiagram A showing plant in water with a lamp at a certain distance and no ice

BDiagram B showing plant in water with a lamp at a certain distance and ice added to the water

CDiagram C showing plant in water with a lamp closer than in A, and ice added to the water

DDiagram D showing plant in water with a lamp closer than in A, and no ice

✓ Correct answer

B: Diagram B showing plant in water with a lamp at a certain distance and ice added to the water

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Topic: Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 1, question 7.

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