O-LevelBiologyPlant Nutrition5090/11 · May/June 2012 · Q51 Mark

The graph shows how the rate of photosynthesis varies with light intensity at two different temperatures. Other variables are kept the same. [Figure 5.1] In which sections of the graph is light intensity limiting the rate of photosynthesis?

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AP and R

BQ and S

CR and Q

DS and P

✓ Correct answer

B: Q and S

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Topic: Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2012 Paper 1 Variant 1, question 5.

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