A2 2 / A2 3 statistics question — recurring in every A2 2 series · 5 marks
CCEA GCE Biology · AS & A2
CCEA Biology practice questions, marked as you write them
65 exam questions built from our worked CCEA past paper answers, worth 333 marks in total. Write your answer, and every mark scheme point is checked against what you wrote — instantly, in your browser, with no account.
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Point-by-point marks
See exactly which mark scheme points you hit and which terms you missed.
Examiner insight
Every question ends with what separates a 3/5 from a 5/5.
Today's exam sprint
Five mixed AS and A2 questions, refreshed daily. Start here if you don't know where you're weakest.
These questions are written in the style of the CCEA GCE Biology (2016) papers and are not reproduced from any live paper. CCEA owns the copyright in its question papers and mark schemes — always download the official paper and mark scheme from CCEA and use these worked answers alongside them. BioCCEA is an independent study tool and is not endorsed by CCEA.
Practice by topic
Each set drills the questions CCEA keeps returning to for that topic.
- A2 · 2 questions · 8 marksThe light-dependent reaction, explained for A-level Biology2 CCEA-style A2 questions on the light-dependent reaction, explained for a-level biology, marked instantly against the mark scheme.
- A2 · 2 questions · 8 marksDihybrid inheritance2 CCEA-style A2 questions on dihybrid inheritance, marked instantly against the mark scheme.
- AS · 2 questions · 10 marksThe cardiac cycle2 CCEA-style AS questions on the cardiac cycle, marked instantly against the mark scheme.
- A2 · 2 questions · 9 marksThe Krebs cycle2 CCEA-style A2 questions on the krebs cycle, marked instantly against the mark scheme.
- A2 · 2 questions · 10 marksAction potentials2 CCEA-style A2 questions on action potentials, marked instantly against the mark scheme.
- A2 · 2 questions · 9 marksMuscle contraction2 CCEA-style A2 questions on muscle contraction, marked instantly against the mark scheme.
- A2 · 2 questions · 8 marksThe chi-squared test in A-level Biology, worked through2 CCEA-style A2 questions on the chi-squared test in a-level biology, worked through, marked instantly against the mark scheme.
- A2 · 2 questions · 6 marksStandard deviation and error bars in A-level Biology2 CCEA-style A2 questions on standard deviation and error bars in a-level biology, marked instantly against the mark scheme.
- AS · 2 questions · 10 marksTranspiration and the cohesion2 CCEA-style AS questions on transpiration and the cohesion, marked instantly against the mark scheme.
- AS · 2 questions · 9 marksWater potential2 CCEA-style AS questions on water potential, marked instantly against the mark scheme.
- A2 · 2 questions · 11 marksThe loop of Henle and the counter-current multiplier2 CCEA-style A2 questions on the loop of henle and the counter-current multiplier, marked instantly against the mark scheme.
- AS · 2 questions · 10 marksThe immune response2 CCEA-style AS questions on the immune response, marked instantly against the mark scheme.
- A2 · 2 questions · 9 marksNatural selection2 CCEA-style A2 questions on natural selection, marked instantly against the mark scheme.
Practice by exam series
Questions written in the style of each CCEA AS and A2 series, so you can sit them before you look at the paper.
- A2 · 3 questions · 16 marksA2 20253 questions in the style of the CCEA A2 Biology Summer 2025 papers, marked point by point.
- A2 · 3 questions · 15 marksA2 20243 questions in the style of the CCEA A2 Biology Summer 2024 papers, marked point by point.
- A2 · 3 questions · 17 marksA2 20233 questions in the style of the CCEA A2 Biology Summer 2023 papers, marked point by point.
- A2 · 3 questions · 16 marksA2 20223 questions in the style of the CCEA A2 Biology Summer 2022 papers, marked point by point.
- A2 · 3 questions · 17 marksA2 20193 questions in the style of the CCEA A2 Biology Summer 2019 papers, marked point by point.
- A2 · 3 questions · 17 marksA2 20183 questions in the style of the CCEA A2 Biology Summer 2018 papers, marked point by point.
- AS · 3 questions · 17 marksAS 20253 questions in the style of the CCEA AS Biology Summer 2025 papers, marked point by point.
- AS · 3 questions · 15 marksAS 20243 questions in the style of the CCEA AS Biology Summer 2024 papers, marked point by point.
- AS · 3 questions · 17 marksAS 20233 questions in the style of the CCEA AS Biology Summer 2023 papers, marked point by point.
- AS · 3 questions · 17 marksAS 20223 questions in the style of the CCEA AS Biology Summer 2022 papers, marked point by point.
- AS · 3 questions · 18 marksAS 20193 questions in the style of the CCEA AS Biology Summer 2019 papers, marked point by point.
- AS · 3 questions · 17 marksAS 20183 questions in the style of the CCEA AS Biology Summer 2018 papers, marked point by point.
- AS · 3 questions · 17 marksAS 20173 questions in the style of the CCEA AS Biology Summer 2017 papers, marked point by point.
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