Practise › Past papers › OCR Biology A › June 2025
OCR A-level Biology A H420: June 2025
Everything OCR publishes for the June 2025 series of H420: 10 files, grouped by the component they belong to. The board hosts every one of them; nothing on this page is a copy.
Checked against OCR’s own listing on 31 August 2026.
The files, by component
Paper 1: Biological processes
| Kind | File |
|---|---|
| Question paper | Question paper - Biological processes (H420/01) |
| Mark scheme | Mark scheme - Biological processes (H420/01) |
| Examiner report | Examiners' report - Biological processes (H420/01) |
Paper 2: Biological diversity
| Kind | File |
|---|---|
| Question paper | Question paper - Biological diversity (H420/02) |
| Mark scheme | Mark scheme - Biological diversity (H420/02) |
| Examiner report | Examiners' report - Biological diversity (H420/02) |
Paper 3: Unified biology
| Kind | File |
|---|---|
| Question paper | Question paper - Unified biology (H420/03) |
| Mark scheme | Mark scheme - Unified biology (H420/03) |
| Examiner report | Examiners' report - Unified biology (H420/03) |
For the whole series
| Kind | File |
|---|---|
| Moderators' report | Moderators' report - Practical endorsement (H414/04, H420/04, H422/04, H432/04, H433/04, H556/04, H557/04) |
The papers in this series
| Code | Paper | Length | Marks | Weighting |
|---|---|---|---|---|
| H420/01 | Biological processes | 2 hours 15 minutes | 100 marks | 37.0% |
| H420/02 | Biological diversity | 2 hours 15 minutes | 100 marks | 37.0% |
| H420/03 | Unified biology | 1 hour 30 minutes | 70 marks | 26.0% |
| H420/04 | Practical Endorsement in biology | no written paper | not marked | reported separately |
The series either side
June 2024, the series before. June 2025 is the most recent series OCR lists for H420.
Every sitting of H420 examines the same structure; what changes is the questions. The H420 past papers page has the whole list of series, and the OCR Biology A specification map says which headings this library teaches.
Links were checked against the awarding bodies’ websites on 31 August 2026. InkBiology does not host or reproduce past papers or mark schemes. If a direct link has moved, use the awarding body’s listing linked above.