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A-LevelBiologyEnzymesFeb/Mar 2016Paper 1 Q121 Mark

The graphs show the effects of temperature and pH on enzyme activity. Which statement is a correct explanation of the enzyme activity? [Figure 12.1]

AAt P, hydrogen bonds are formed between enzyme and substrate.
BAt Q, the kinetic energy of enzyme and substrate is highest.
CAt R, disulfide bonds in the enzyme begin to break.
DAt S, the enzyme is completely denatured.

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The correct answer is A. This question tests the candidate's understanding of enzymes within the Biologysyllabus. The examiner's mark scheme requires...

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About This A-Level Biology Question

This multiple-choice question appeared in the Cambridge A-Level Biology (9700) Feb/Mar 2016 examination, Paper 1 Variant 2. It tests the topic of Enzymes and is worth 1 mark.

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