WBI · Past papers
Biology past papers
Edexcel IAL Biology is modular. Use the unit + session map below to plan which papers to sit, then mark practice answers with board-native conventions.
Recent IAL series
January, June and October sittings (2022–2025). We do not host Pearson PDFs here — open your paper, write an answer, then mark it on MarkScheme.
- January 2025
- June 2025
- October 2025
- January 2024
- June 2024
- October 2024
- + earlier series
Units
- WBI11Molecules, Diet, Transport and Health
- WBI12Cells, Development, Biodiversity and Conservation
- WBI13Practical Skills in Biology I
- WBI14Energy, Environment, Microbiology and Immunity
- WBI15Respiration, Internal Environment, Coordination and Gene Technology
- WBI16Practical Skills in Biology II
Practice loop
Worked a paper?
How to run a unit practice loop: IAL Biology past papers guide. Mark with board-native conventions for IAL Biology.