A student investigates the rate of starch hydrolysis by the enzyme amylase. The student measures the mass of maltose produced at 4-minute intervals over a 12-minute period. The results are shown in the table below:
| Time (minutes) | Mass of maltose produced (mg) |
|---|---|
| 0 | 0 |
| 4 | 56 |
| 8 | 82 |
| 12 | 95 |
Calculate the difference between the rate of maltose 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.