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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. This is because higher light intensity provides more energy for the photosynthetic process, allowing more reactions to occur. However, once light intensity reaches a certain level, the rate of photosynthesis levels off, indicating that another factor may be limiting the process.
Step 2
Explain the effect of temperature on the rate of photosynthesis.
Answer
Temperature influences the rate of photosynthesis as it affects enzyme activity. As temperature increases, the rate of photosynthesis can also increase because enzymes that facilitate photosynthesis work more effectively at optimal temperatures. However, if the temperature exceeds this optimum range, enzyme activity may decrease due to denaturation, leading to a lower rate of photosynthesis.
Step 3