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Figure 16 shows the effect of light intensity and temperature on the rate of photosynthesis - Edexcel - GCSE Biology - Question 8 - 2018 - Paper 1
Question 8
Figure 16 shows the effect of light intensity and temperature on the rate of photosynthesis. (i) Describe the effect of light intensity on the rate of photosynthesi... show full transcript
Worked Solution & Example Answer:Figure 16 shows the effect of light intensity and temperature on the rate of photosynthesis - Edexcel - GCSE Biology - Question 8 - 2018 - Paper 1
Step 1
Describe the effect of light intensity on the rate of photosynthesis.
Answer
As light intensity increases, the rate of photosynthesis also increases, up to a certain point. Beyond this point, the rate plateaus as another factor starts limiting the process, indicating that light intensity is no longer a limiting factor.
Step 2
Explain the effect of temperature on the rate of photosynthesis.
Answer
Temperature affects the rate of photosynthesis as well. As temperature rises, the rate generally increases due to more enzyme-substrate complexes forming. However, if temperatures exceed the optimum level, enzymes can denature, leading to a decrease in the rate of photosynthesis.
Step 3