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Edexcel A-level Biology B questions by topic

Our topic questions for Edexcel A-level Biology B (9BI0), sorted under the sections of Pearson Edexcel’s Biology B specification in the order it prints them. Every question is original, with a point-by-point mark scheme, and every set has a printable PDF.

Other specifications: AQA A-level Biology · OCR A-level Biology A · Cambridge A-level Biology · Edexcel A-level Biology A · every topic, by unit

80 topics

Topic 1: Biological Molecules

1.1 Carbohydrates37 questions2 topics
1.2 Lipids30 questions2 topics
1.3 Proteins15 questions1 topic
1.4 DNA and protein synthesis102 questions6 topics
1.5 Enzymes93 questions6 topics
1.6 Inorganic ions38 questions2 topics
1.7 Water15 questions1 topic

Topic 2: Cells, Viruses and Reproduction of Living Things

2.1 Eukaryotic and prokaryotic cell structure and function106 questions6 topics
2.2 Viruses75 questions4 topics
2.3 Eukaryotic cell cycle and division71 questions4 topics
2.4 Sexual reproduction in mammals15 questions1 topic
2.5 Sexual reproduction in plants14 questions1 topic

Topic 3: Classification and Biodiversity

3.1 Classification83 questions5 topics
3.2 Natural selection89 questions5 topics
3.3 Biodiversity30 questions2 topics

Topic 4: Exchange and Transport

4.1 Surface area to volume ratio30 questions2 topics
4.2 Cell transport mechanisms60 questions4 topics
4.3 Gas exchange74 questions4 topics
4.4 Circulation131 questions8 topics
4.5 Transport of gases in the blood30 questions2 topics
4.6 Transfer of materials between the circulatory system and cells15 questions1 topic
4.7 Transport in plants71 questions4 topics

Topic 5: Energy for Biological Processes (A-level only)

5.1 Aerobic respiration45 questions3 topics
5.2 Glycolysis15 questions1 topic
5.3 Link reaction and Krebs cycle30 questions2 topics
5.4 Oxidative phosphorylation35 questions2 topics
5.5 Anaerobic respiration18 questions1 topic
5.6 Photosynthetic pigments43 questions2 topics
5.7 Photosynthesis89 questions4 topics

Topic 6: Microbiology and Pathogens (A-level only)

6.1 Microbial techniques39 questions2 topics
6.2 Bacteria as pathogens21 questions1 topic
6.3 Action of antibiotics46 questions2 topics
6.4 Antibiotic resistance65 questions3 topics
6.5 Other pathogenic agents40 questions2 topics
6.6 Problems of controlling endemic diseases19 questions1 topic
6.7 Response to infection57 questions3 topics

Topic 7: Modern Genetics (A-level only)

7.1 Using gene sequencing52 questions3 topics
7.2 Factors affecting gene expression45 questions3 topics
7.3 Stem cells84 questions5 topics
7.4 Gene technology54 questions3 topics

Topic 8: Origins of Genetic Variation (A-level only)

8.1 Origins of genetic variation33 questions2 topics
8.2 Transfer of genetic information69 questions4 topics
8.3 Gene pools85 questions5 topics

Topic 9: Control Systems (A-level only)

9.1 Homeostasis63 questions4 topics
9.2 Chemical control in mammals30 questions2 topics
9.3 Chemical control in plants23 questions1 topic
9.4 Structure and function of the mammalian nervous system19 questions1 topic
9.5 Nervous transmission69 questions4 topics
9.6 Effects of drugs on the nervous system35 questions2 topics
9.7 Detection of light by mammals21 questions1 topic
9.8 Control of heart rate in mammals49 questions3 topics
9.9 Osmoregulation and temperature regulation75 questions5 topics

Topic 10: Ecosystems (A-level only)

10.1 The nature of ecosystems98 questions5 topics
10.2 Energy transfer through ecosystems40 questions2 topics
10.3 Changes in ecosystems43 questions2 topics
10.4 Human effects on ecosystems76 questions4 topics

A topic is listed under every section its lesson teaches, so some appear more than once. The codes beside each one are the specification headings it covers in that section.

The sections and codes are Pearson Edexcel’s, so check the current specification when a mark depends on one. The 8BI0/9BI0 route map lists every heading, with the lessons that teach it.