O-LevelBiologyPlant Nutrition5090/11 · May/June 2019 · Q61 Mark

The graphs show how two different conditions affect the rate of photosynthesis. [Figure 6.1] Which conditions are being altered in graphs 1 and 2?

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Acarbon dioxide concentration, light intensity

Bcarbon dioxide concentration, temperature

Ctemperature, carbon dioxide

Dtemperature, light intensity

✓ Correct answer

B: carbon dioxide concentration, temperature

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Topic: Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2019 Paper 1 Variant 1, question 6.

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