Biology 5090 · 5 Enzymes
5.2 Effects of temperature and pH
Investigate and explain how temperature and pH affect enzyme activity, kinetic energy, and denaturation.
- Questions
- 91
- Years
- 2004–2026
- Multiple choice
- 40
- Written answer
- 51
- Average marks
- 9.2
Where this subtopic appears
- Paper 1variants 01, 11, 1240
- Paper 2variants 02, 21, 2218
- Paper 6variants 06, 61, 6218
- Paper 3variants 31, 3214
- Paper 4variants 411
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 4 | – | 4 |
| 2023 | 1 | 4 | 5 |
| 2022 | 7 | 3 | 10 |
| 2021 | 3 | 1 | 4 |
| 2020 | 3 | 5 | 8 |
| 2019 | 6 | 2 | 8 |
| 2018 | 2 | 4 | 6 |
| 2017 | 4 | 1 | 5 |
| 2016 | 5 | 4 | 9 |
| 2015 | 5 | 1 | 6 |
| 2013 | 4 | – | 4 |
| 2012 | 1 | 3 | 4 |
| 2011 | 2 | 1 | 3 |
| 2010 | – | 1 | 1 |
| 2009 | 2 | – | 2 |
| 2008 | 2 | 2 | 4 |
| 2007 | – | 2 | 2 |
| 2006 | 1 | 1 | 2 |
| 2005 | 1 | 1 | 2 |
| 2004 | 2 | – | 2 |
