The table shows results from four enzyme-controlled reactions.
Table
| Reaction | Mass of product formed / mg | Time / min |
|---|---|---|
| P | 12 | 2 |
| Q | 15 | 3 |
| R | 24 | 6 |
| S | 28 | 7 |
Which reaction has the greatest mean rate of product formation?
reaction P
reaction Q
reaction R
reaction S
44 exam-style questions on Edexcel GCSE Biology 1.3 Enzymes, covering 1.3.1 Mechanism of enzyme action, 1.3.2 Denaturation of enzymes, 1.3.3 Factors affecting enzyme activity, and 1.3.4 Measuring energy in food by calorimetry. Each one has a worked solution and a mark scheme showing where the marks go.