What this tests
Syllabus point 5.1 — Enzymes, in Enzymes. Difficulty easy (estimated from the question's demands, not a Cambridge rating).
Also set in
The same question, as Cambridge printed it in other papers.
Cambridge IGCSE Biology 0610 · 5.1 Enzymes
November 2021 · Paper 23 · Question 11
One real Cambridge question from Enzymes, with the official answer. Cambridge has printed this question 6 times.