104 Cambridge O Level Biology (5090) past papers from 2020 to 2026, listed by exam series. Every paper can be read free and practised with an AI tutor that explains each question step by step.
| Exam board | Cambridge International Education |
|---|---|
| Qualification | Cambridge O Level |
| Syllabus code | 5090 |
| Papers | Paper 11, Paper 12, Paper 21, Paper 22, Paper 31, Paper 32, Paper 41, Paper 42, Paper 61, Paper 62 |
| Exam series | 13 (May/June 2020 to May/June 2026) |
How often each syllabus chapter comes up across the 104 Cambridge O Level Biology (5090) papers on Aixampapers — revise these first.
| Topic | Questions | Papers |
|---|---|---|
| Chapter 6: Plant nutrition | 191 | 73 |
| Chapter 1: Cells | 178 | 81 |
| Chapter 11: Transport in humans | 169 | 64 |
| Chapter 19: Relationships of organisms with one another and with the environment | 159 | 57 |
| Chapter 14: Coordination and control | 146 | 43 |
| Chapter 5: Enzymes | 143 | 69 |
| Chapter 3: Movement into and out of cells | 128 | 57 |
| Chapter 7: Transport in flowering plants | 124 | 54 |
| Chapter 16: Development of organisms and continuity of life | 122 | 48 |
| Chapter 8: Human nutrition | 104 | 50 |
| Chapter 12: Disease and immunity | 100 | 39 |
| Chapter 10: Respiration | 95 | 44 |
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