Question bank › Edexcel International A Level Biology Board: AQA Edexcel A Edexcel B OCR A OCR B Eduqas WJEC Cambridge Edexcel International A Level Edexcel International A Level Biology questions by topic Every question from every Edexcel International A Level Biology paper, 2019–2025, part by part. Filter by topic, paper or year, open the mark scheme under any question, and download a set as a PDF. A sitting marked (R) or (A) is a second paper Pearson set for it, sat in other time zones. Pearson keeps its newest papers (October 2025 on) for schools, and hasn’t published October 2019’s papers.
Topics Pick as many as you like. Open one to choose its sub-topics. Year 1 · AS
Topic 1: Molecules, transport and health +
Topic 2: Membranes, proteins, DNA and gene expression +
Topic 3: Cell structure, reproduction and development +
Topic 4: Plant structure and function, biodiversity and conservation +
Practical skills (Units 3 and 6) +
Year 2 · A‑Level only
Topic 5: Energy flow, ecosystems and the environment +
Topic 6: Microbiology, immunity and forensics +
Topic 7: Respiration, muscles and the internal environment +
Topic 8: Coordination, response and gene technology +
1 Q1(a)
June 2025 · AS Unit 1
3 marks Cardiovascular disease and its risk factors
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2 Q1(b)
June 2025 · AS Unit 1
1 mark Cardiovascular disease and its risk factors
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3 Q1(c)
June 2025 · AS Unit 1
1 mark Cardiovascular disease and its risk factors
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4 Q2(a)(i)
June 2025 · AS Unit 1
1 mark Heart, blood vessels and haemoglobin
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5 Q2(a)(ii)
June 2025 · AS Unit 1
1 mark Heart, blood vessels and haemoglobin
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6 Q2(b)
June 2025 · AS Unit 1
3 marks Heart, blood vessels and haemoglobin
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7 Q3(a)
June 2025 · AS Unit 1
3 marks Heart, blood vessels and haemoglobin
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8 Q3(b)(i)
June 2025 · AS Unit 1
1 mark Heart, blood vessels and haemoglobin
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9 Q3(b)(ii)
June 2025 · AS Unit 1
2 marks Heart, blood vessels and haemoglobin
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10 Q4(a)
June 2025 · AS Unit 1
3 marks Gas exchange and cell membranes
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11 Q4(b)
June 2025 · AS Unit 1
2 marks Heart, blood vessels and haemoglobin
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12 Q4(c)
June 2025 · AS Unit 1
6 marks Heart, blood vessels and haemoglobin Gas exchange and cell membranes
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13 Q5(a)
June 2025 · AS Unit 1
2 marks DNA, RNA and replication
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14 Q5(b)
June 2025 · AS Unit 1
3 marks The genetic code and protein synthesis
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15 Q5(c)(i)
June 2025 · AS Unit 1
2 marks DNA, RNA and replication The genetic code and protein synthesis
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16 Q5(c)(ii)
June 2025 · AS Unit 1
6 marks DNA, RNA and replication The genetic code and protein synthesis
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17 Q6(a)(i)
June 2025 · AS Unit 1
1 mark Gas exchange and cell membranes
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18 Q6(a)(ii)
June 2025 · AS Unit 1
1 mark Gas exchange and cell membranes
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19 Q6(a)(iii)
June 2025 · AS Unit 1
1 mark Gas exchange and cell membranes
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20 Q6(b)
June 2025 · AS Unit 1
1 mark Gas exchange and cell membranes
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Every topic: Water, carbohydrates and lipids Heart, blood vessels and haemoglobin Cardiovascular disease and its risk factors Health risk, data and treatments Gas exchange and cell membranes Transport across membranes Proteins and enzymes DNA, RNA and replication The genetic code and protein synthesis Mutation, inheritance and cystic fibrosis Genetic screening Cell structure and organisation Microscopy Meiosis, gametes and fertilisation Mitosis and the cell cycle Stem cells and gene expression Genotype, environment and phenotype Plant cells, starch and cellulose Plant stems, fibres and mineral ions Antimicrobial plants and drug testing Classification Biodiversity and its measurement Niche, adaptation and Hardy-Weinberg Conservation Photosynthesis Productivity and energy transfer Ecosystems, distribution and succession Climate change Evolution and speciation Scientific debate, reforestation and biofuels Culturing microorganisms and growth curves Bacteria, viruses, TB and HIV Infection and the immune response Antibiotics and hospital infections Decomposition, DNA profiling and forensics Respiration Muscles and movement Heart rate, ventilation and exercise Homeostasis and the kidney Switching genes on and off Neurones and nerve impulses Synapses and drugs Detecting stimuli and habituation Plant responses and coordination The brain, imaging and brain chemicals Gene technology and bioinformatics Practical skills Questions, mark schemes and examiner’s reports are © Pearson Edexcel, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every Edexcel International A Level Biology paper .
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