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Question 24 The data in the table are the results from an investigation measuring enzyme activity using different substrate concentrations - HSC - SSCE Biology - Question 24 - 2008 - Paper 1
Question 24
Question 24 The data in the table are the results from an investigation measuring enzyme activity using different substrate concentrations. The experiment was carri... show full transcript
Worked Solution & Example Answer:Question 24 The data in the table are the results from an investigation measuring enzyme activity using different substrate concentrations - HSC - SSCE Biology - Question 24 - 2008 - Paper 1
Step 1
Extrapolate your graph and predict what the enzyme activity would be if the substrate concentration were increased to 75 µM.
Answer
To extrapolate the graph for a substrate concentration of 75 µM:
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Continue the Trend:
- Extend the line of best fit beyond the last plotted point (45 µM).
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Estimate Enzyme Activity:
- By observing the trend, notice that the enzyme activity increases as the substrate concentration increases. The activity should approach a plateau as saturation is reached.
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Predict Value:
- Based on the last few points and the trend in the graph, it’s reasonable to predict that the enzyme activity at 75 µM would be approximately 4.5 µM/sec/g. This value indicates continued but diminishing returns on enzyme activity with increasing substrate concentration.