A-LevelBiologyEnzymesOct/Nov 2022Paper 1 Q131 Mark
A student investigated the effect of substrate concentration on the activity of an enzyme. The graph shows the results of this investigation. [Graph] An increase in which factors could lead to a change in the activity of the enzyme at point X on the graph? 1 pH 2 substrate concentration 3 temperature
A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of enzymes within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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