Pearson Edexcel IGCSE Biology

Syllabus 4BI1 · Issue 3 · sourced from Pearson Edexcel -- official International GCSE Biology (4BI1) specification PDF, Issue 3, September 2024, verified 2026-08-19.

1. 1. The nature and variety of living organisms

   Subtopic-level detail for this topic is not yet itemised from the published syllabus.

2. 2. Structures and functions in living organisms

   • a Level of organisation
   • b Cell structure
   • c Biological molecules
   • d Movement of substances into and out of cells
   • e Nutrition
   • f Respiration
   • g Gas exchange
   • h Transport
   • i Excretion
   • j Co-ordination and response

3. 3. Reproduction and inheritance

   • a Reproduction
   • b Inheritance

4. 4. Ecology and the environment

   Subtopic-level detail for this topic is not yet itemised from the published syllabus.

5. 5. Use of biological resources

   Subtopic-level detail for this topic is not yet itemised from the published syllabus.