Cambridge O Level Biology · Syllabus 5090 · Enzymes
Rate of reaction
What is Rate of reaction?
A measure of how much reactant is used or product is formed in a given time. In enzyme experiments it is found either by dividing the amount of product formed by the time taken, or, when the reaction is timed to a fixed endpoint, by taking the reciprocal of that time so that a shorter time gives a larger value.
This definition is part of the Enzymes chapter in Cambridge O Level Biology.
Last reviewed Syllabus 2026-2028

