A student investigated the activity of the enzyme ATP hydrolase. She measured the amount of inorganic phosphate released over time using two different ATP concentrations, A (higher) and B (lower). Her results are shown below.
Calculate the mean rate of inorganic phosphate release for curve A over the first 2 minutes. Show your working.
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Explain the difference between curve A and curve B.
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Give two variables the student should have controlled in this investigation.
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