Biology 0610 · 5 Enzymes
5.1 Enzymes
Explain enzyme action, specificity, and denaturation using the lock-and-key model, and investigate effects of temperature and pH.
- Questions
- 338
- Years
- 2015–2026
- Multiple choice
- 217
- Written answer
- 121
- Average marks
- 6.2
Where this subtopic appears
- Paper 2variants 21, 22, 23119
- Paper 1variants 11, 12, 13101
- Paper 6variants 61, 62, 6336
- Paper 4variants 41, 42, 4332
- Paper 3variants 31, 32, 3329
- Paper 5variants 51, 52, 5321
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | 7 | 18 | – | 25 |
| 2023 | 6 | 19 | 16 | 41 |
| 2022 | 9 | 15 | 19 | 43 |
| 2021 | 7 | 15 | 23 | 45 |
| 2020 | – | 12 | – | 12 |
| 2019 | 10 | 16 | 7 | 33 |
| 2018 | 4 | 17 | 24 | 45 |
| 2017 | 4 | 15 | 12 | 31 |
| 2016 | 7 | 17 | 13 | 37 |
| 2015 | 3 | 14 | 9 | 26 |
