Skip to main content
O-LevelBiologyEnzymes5090/12 · May/June 2022 · Q61 Mark

Which statement identifies the optimum (best) temperature for enzyme activity?

AIt is the highest temperature at which any enzyme activity happens.
BIt is the highest temperature that does not destroy an enzyme.
CIt is the lowest temperature that denatures an enzyme.
DIt is the temperature that produces the highest rate of enzyme activity.

✓ Correct answer

D: It is the temperature that produces the highest rate of enzyme activity.

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, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2022 Paper 1 Variant 2, question 6.

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