Cambridge O Level Biology (5090) Paper 12, October/November 2025. Read the question paper free and work through it with an AI tutor that explains every question step by step.
| Exam board | Cambridge International Education |
|---|---|
| Qualification | Cambridge O Level |
| Subject | Biology |
| Syllabus code | 5090 |
| Paper | Paper 12 (5090/12) |
| Exam series | October/November 2025 · all 2025 papers |
| Questions | 40 |
| AI explanations | Available for every question |
The questions in this paper cover these Biology syllabus chapters:
| Topic | Questions |
|---|---|
| Chapter 1: Cells | 3 |
| Chapter 2: Classification | 1 |
| Chapter 3: Movement into and out of cells | 2 |
| Chapter 4: Biological molecules | 3 |
| Chapter 5: Enzymes | 4 |
| Chapter 6: Plant nutrition | 5 |
| Chapter 7: Transport in flowering plants | 4 |
| Chapter 8: Human nutrition | 5 |
| Chapter 9: Human gas exchange | 3 |
| Chapter 10: Respiration | 5 |
| Chapter 11: Transport in humans | 4 |
| Chapter 12: Disease and immunity | 3 |
| Chapter 14: Coordination and control | 2 |
| Chapter 15: Coordination and response in plants | 2 |
| Chapter 16: Development of organisms and continuity of life | 2 |
| Chapter 17: Inheritance | 5 |
| Chapter 18: Biotechnology and genetic modification | 2 |
| Chapter 19: Relationships of organisms with one another and with the environment | 4 |
Every question in 5090 Biology Paper 12 — Oct/Nov 2025 and the syllabus topic it tests. Ask the AI tutor about any of them by number, for example "Question 1".
| Question | Topic |
|---|---|
| Question 1 | Chapter 1: Cells |
| Question 2 | Chapter 2: Classification |
| Question 3 | Chapter 3: Movement into and out of cells |
| Question 4 | Chapter 4: Biological molecules; Chapter 11: Transport in humans; Chapter 12: Disease and immunity |
| Question 5 | Chapter 4: Biological molecules |
| Question 6 | Chapter 4: Biological molecules; Chapter 5: Enzymes; Chapter 8: Human nutrition |
| Question 7 | Chapter 1: Cells; Chapter 6: Plant nutrition; Chapter 7: Transport in flowering plants |
| Question 8 | Chapter 6: Plant nutrition |
| Question 9 | Chapter 5: Enzymes; Chapter 10: Respiration; Chapter 16: Development of organisms and continuity of life |
| Question 10 | Chapter 5: Enzymes |
| Question 11 | Chapter 8: Human nutrition; Chapter 12: Disease and immunity |
| Question 12 | Chapter 9: Human gas exchange; Chapter 10: Respiration; Chapter 11: Transport in humans |
| Question 13 | Chapter 8: Human nutrition; Chapter 9: Human gas exchange |
| Question 14 | Chapter 5: Enzymes; Chapter 6: Plant nutrition; Chapter 14: Coordination and control |
| Question 15 | Chapter 7: Transport in flowering plants |
| Question 16 | Chapter 10: Respiration |
| Question 17 | — |
| Question 18 | Chapter 7: Transport in flowering plants; Chapter 15: Coordination and response in plants |
| Question 19 | Chapter 11: Transport in humans |
| Question 20 | Chapter 14: Coordination and control |
| Question 21 | Chapter 8: Human nutrition; Chapter 11: Transport in humans; Chapter 12: Disease and immunity |
| Question 22 | Chapter 3: Movement into and out of cells; Chapter 10: Respiration |
| Question 23 | — |
| Question 24 | Chapter 1: Cells; Chapter 6: Plant nutrition; Chapter 8: Human nutrition; Chapter 9: Human gas exchange |
| Question 25 | — |
| Question 26 | — |
| Question 27 | — |
| Question 28 | — |
| Question 29 | Chapter 6: Plant nutrition; Chapter 7: Transport in flowering plants; Chapter 15: Coordination and response in plants |
| Question 30 | Chapter 17: Inheritance |
| Question 31 | Chapter 17: Inheritance |
| Question 32 | Chapter 17: Inheritance |
| Question 33 | Chapter 16: Development of organisms and continuity of life; Chapter 17: Inheritance |
| Question 34 | Chapter 17: Inheritance |
| Question 35 | Chapter 10: Respiration; Chapter 18: Biotechnology and genetic modification |
| Question 36 | Chapter 18: Biotechnology and genetic modification |
| Question 37 | Chapter 19: Relationships of organisms with one another and with the environment |
| Question 38 | Chapter 19: Relationships of organisms with one another and with the environment |
| Question 39 | Chapter 19: Relationships of organisms with one another and with the environment |
| Question 40 | Chapter 19: Relationships of organisms with one another and with the environment |
This paper tests 18 syllabus topics: Cells (3 questions), Classification (1 question), Movement into and out of cells (2 questions), Biological molecules (3 questions), Enzymes (4 questions), Plant nutrition (5 questions), Transport in flowering plants (4 questions), Human nutrition (5 questions), Human gas exchange (3 questions), Respiration (5 questions), Transport in humans (4 questions), Disease and immunity (3 questions), Coordination and control (2 questions), Coordination and response in plants (2 questions), Development of organisms and continuity of life (2 questions), Inheritance (5 questions), Biotechnology and genetic modification (2 questions), Relationships of organisms with one another and with the environment (4 questions).
Yes. Open the paper on Aixampapers and ask the AI tutor about any question: it explains each one step by step, written to what Cambridge examiners give marks for.
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