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CCEA A Level Biology past papers hub

All 39 CCEA GCE Biology unit papers — AS 1, AS 2, AS 3, A2 1, A2 2 and A2 3 for every published series — with the official paper and mark scheme download for each, a worked walkthrough where we have one, and a search that tells you what a command word or mark-scheme buzzword has to contain. Pick a series to see what that paper asked, how long you get, which units it covers and how to mark your attempt honestly. Papers and mark schemes are published by CCEA at ccea.org.uk. BioCCEA is an independent study tool and is not endorsed by CCEA.

Series walkthroughs

Every CCEA Biology paper

39 unit papers across every series published for the current specification. Each row opens CCEA’s own download page, where the question paper and mark scheme PDFs live — CCEA owns those papers, so they are never copied onto this site.

Showing 39 papers

CCEA GCE Biology unit papers by series
PaperSeriesDownload
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2025Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2025Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2025Paper & mark scheme
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2024Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2024Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2024Paper & mark scheme
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2023Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2023Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2023Paper & mark scheme
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2019Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2019Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2019Paper & mark scheme
A2 1 Physiology, Co-ordination and Control, and EcosystemsWorked walkthroughSummer 2018First A2 series of the 2016 specification.Paper & mark scheme
A2 2 Biochemistry, Genetics and Evolutionary TrendsWorked walkthroughSummer 2018First A2 series of the 2016 specification.Paper & mark scheme
A2 3 Practical Skills in A2 BiologyWorked walkthroughSummer 2018First A2 series of the 2016 specification.Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2025Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2025Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2025Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2024Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2024Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2024Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2023Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2023Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2023Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2022Reduced content — check what was removed before using it as a full mock.Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2019Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2019Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2019Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2018Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2018Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2018Paper & mark scheme
AS 1 Molecules and CellsWorked walkthroughSummer 2017First series of the 2016 specification.Paper & mark scheme
AS 2 Organisms and BiodiversityWorked walkthroughSummer 2017First series of the 2016 specification.Paper & mark scheme
AS 3 Practical Skills in AS BiologyWorked walkthroughSummer 2017First series of the 2016 specification.Paper & mark scheme
Open CCEA’s official past papers & mark schemes archive

Search by command word or buzzword

Type the word the question uses (“explain”, “compare”) or the term you think the mark scheme wants (“water potential”, “counter-current”). You get what CCEA credits, the wording that scores nothing, and a question to practise it on.

Turn a paper into marks

Photograph your written answers and get them marked in CCEA mark-scheme language, so you find out which marks you actually missed rather than guessing.

Mark an answer free AS papers guideA2 papers guideMark schemes