A scientist investigates the rate of sucrose hydrolysis by the enzyme sucrase. The reaction mixture is kept at a constant temperature, and the concentration of reducing sugars produced is measured every 4 minutes. The table below shows the results of this investigation:
| Time (minutes) | Concentration of reducing sugars (mmol dm−3\text{mmol dm}^{-3}mmol dm−3) |
|---|---|
| 0 | 0.0 |
| 4 | 18.4 |
| 8 | 29.2 |
| 12 | 34.0 |
Calculate the difference between the rate of reducing sugar production in the first four minutes and the rate in the final four minutes.
Show your working.
21 exam-style questions on Edexcel IGCSE Biology Biological molecules. Each one has a worked solution and a mark scheme showing where the marks go.