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A scientist investigated the rate of photosynthesis of one type of tomato plant - AQA - GCSE Biology - Question 3 - 2010 - Paper 1
Question 3
A scientist investigated the rate of photosynthesis of one type of tomato plant. The tomato plants were grown in a greenhouse. Table 2 shows the results. Tab... show full transcript
Worked Solution & Example Answer:A scientist investigated the rate of photosynthesis of one type of tomato plant - AQA - GCSE Biology - Question 3 - 2010 - Paper 1
Step 1
Which range of carbon dioxide concentrations caused the rate of photosynthesis to change the most?
Answer
The range that caused the most change is from 0.02% to 0.04%. Observing the data, the rate of photosynthesis increases from 5 (at 0.02%) to 16 (at 0.04%), which represents a significant increase.
Step 2
Explain the change in the rate of photosynthesis when the concentration of carbon dioxide increased between 0.00% to 0.08%.
Answer
The rate of photosynthesis increases as the concentration of carbon dioxide rises from 0.00% to 0.08%. This is because carbon dioxide is a critical reactant in the process of photosynthesis, allowing the plants to produce glucose and oxygen. As more carbon dioxide is available, the rate at which photosynthesis occurs increases, leading to higher rates of glucose production until a saturation point is reached, where further increases in carbon dioxide do not significantly enhance the rate.