Biology 5090 · 19 Relationships of organisms with one another and with the environment
19.2 Nutrient cycles
Describe the carbon and nitrogen cycles, highlighting the roles of bacteria and fungi in decomposition.
- Questions
- 114
- Years
- 2004–2026
- Multiple choice
- 86
- Written answer
- 28
- Average marks
- 3.2
Practise relationships of organisms with one another and with the environment questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1286
- Paper 2variants 02, 21, 2227
- Paper 6variants 621
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 3 | – | 3 |
| 2023 | 3 | 1 | 4 |
| 2022 | 3 | 2 | 5 |
| 2021 | 4 | 5 | 9 |
| 2020 | 3 | 2 | 5 |
| 2019 | 4 | 2 | 6 |
| 2018 | 2 | 5 | 7 |
| 2017 | 2 | 4 | 6 |
| 2016 | 3 | 4 | 7 |
| 2015 | 3 | 8 | 11 |
| 2014 | – | 2 | 2 |
| 2013 | 4 | 6 | 10 |
| 2012 | 5 | – | 5 |
| 2011 | 7 | – | 7 |
| 2010 | – | 4 | 4 |
| 2009 | 3 | 2 | 5 |
| 2008 | 2 | 3 | 5 |
| 2007 | 3 | 2 | 5 |
| 2006 | 2 | 1 | 3 |
| 2005 | 2 | – | 2 |
| 2004 | 2 | 1 | 3 |
