Track your confidence level (1–5) for each topic, when you last reviewed it, and when to review next. Aligned to the Pearson Edexcel IGCSE Biology 4BI1 specification for 2026 exams.
| Topic | Sub-Topic | Resources | Confidence (1–5) | Last Reviewed | Next Review |
|---|---|---|---|---|---|
| 1. The nature and variety of living organisms | Characteristics of living organisms | LearnOpens subject resources | |||
| 1. The nature and variety of living organisms | Variety of living organisms | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Level of organisation | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Cell structure | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Biological molecules | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Movement of substances into and out of cells | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Nutrition | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Respiration | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Gas exchange | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Transport | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Excretion | LearnOpens subject resources | |||
| 2. Structure and functions in living organisms | Co-ordination and response | LearnOpens subject resources | |||
| 3. Reproduction and inheritance | Reproduction | LearnOpens subject resources | |||
| 3. Reproduction and inheritance | Inheritance | LearnOpens subject resources | |||
| 4. Ecology and the environment | The organism in the environment | LearnOpens subject resources | |||
| 4. Ecology and the environment | Feeding relationships | LearnOpens subject resources | |||
| 4. Ecology and the environment | Cycles within ecosystems | LearnOpens subject resources | |||
| 4. Ecology and the environment | Human influences on the environment | LearnOpens subject resources | |||
| 5. Use of biological resources | Food production | LearnOpens subject resources | |||
| 5. Use of biological resources | Selective breeding | LearnOpens subject resources | |||
| 5. Use of biological resources | Genetic modification (genetic engineering) | LearnOpens subject resources | |||
| 5. Use of biological resources | Cloning | LearnOpens subject resources |
Use this checklist with our Past Paper Finder to practise weak topics. Confidence: 1 = very low, 5 = confident.