AQA-74021-SQP.A-level BIOLOGY (7402/1)
A technician investigated the effect of temperature on the rate of an enzyme-controlled reaction. At each temperature, he started the reaction using the same concentration of substrate. Figure 1 shows his results. Give two other factors the technician would have controlled. [1 mark] Draw a tangent on each curve to find the initial rates of reaction. Use these values to calculate the ratio of the initial rates of reaction at 60 °C : 37 ° C. Show your working. [2 marks] 0 1 . 2 0 1 . 1 1 2 Ratio = :1 1 3 Turn over Explain the difference in the initial rate of reaction at 60 °C and 37 °C.
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- 15 januari 2023
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