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A-LevelBiologyEnzymes9700/12 · Oct/Nov 2009 · Q161 Mark

In an experiment, 5 cm³ of 1% salivary amylase are added to 100 cm³ of different concentrations of starch. Which graph shows the results of plotting the initial rate of reaction (y-axis) against the concentration of substrate (x-axis)?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Graph A]
B[Graph B]
C[Graph C]
D[Graph D]

✓ Correct answer

A: [Graph A]

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About this question

Topic
Enzymes, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2009 Paper 1 Variant 2, question 16.

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