Skip to main content
A-LevelBiologyEnzymes9700/12 · Oct/Nov 2024 · Q121 Mark

The initial rate of a reaction catalysed by an enzyme was measured at various substrate concentrations. Which graph shows the effect of a low concentration of non-competitive inhibitor on the reaction?

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

D: [Graph D]

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Enzymes and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Enzymes, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2024 Paper 1 Variant 2, question 12.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

© 2026 Oracle Prep