Carbon dioxide concentration is a limiting factor in photosynthesis.
Explain why this is the case.
Fig. 1 shows the relationship between carbon dioxide concentration and the rate of photosynthesis.
Fig. 1
Describe the relationship between carbon dioxide concentration and rate of photosynthesis shown in Fig. 1.
Identify a possible limiting factor at the point labelled X in Fig. 1.
Sketch a graph of the rate of photosynthesis against temperature
[1]
Explain the shape of the graph that you have drawn in part (i).
[2]
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