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Biology · Oct / Nov 2020 · Paper 11 · Question 7

5090Photosynthesis

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

  1. AP and R
  2. BQ and S
  3. CR and Q
  4. DS and P

As printed in the paper

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Correct answer: B. Q and S

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