OCR A Level Biology Textbook

Clear explanations, diagrams and worked examples for every topic.

Our OCR A Level Biology textbook goes deeper than revision notes. Our topics include detailed explanations, diagrams, and worked examples – all aligned to the OCR A specification and up-to-date. Buy individual topics or save with bundles.

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OCR A Level Biology Textbook Phagocytosis

What’s included

  • Detailed explanations – not just what, but why
  • Clear diagrams and visuals
  • Worked examples and calculations
  • Detailed, yet concise, summary tables
  • Fully aligned to OCR A specification
  • Online access – view on any device, anytime

All paid resources are accessed online through your account and are not downloadable. This keeps your content secure and accessible from any device.

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ocr a level biology enzymes
ocr a level biology textbook

This is a sample from our Enzymes topic. Every topic follows the same format – clear explanations, detailed diagrams and tables to help you understand, not just memorise.

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Individual topics from £1.99. Save over 80% with our textbook bundle.

  1. Textbook: Microscopy — £1.99
  2. Textbook: Using Microscopes — £1.99
  3. Textbook: Microscopy Calculations — £2.99
  4. Textbook: Preparing Microscope Slides — £1.99
  5. Textbook: Eukaryotic Cell Structure — £5.49
  6. Textbook: Prokaryotic Cell Structure — £0.01
  7. Textbook: Interpreting Micrographs — £3.99
  8. Textbook: Comparing Eukaryotic and Prokaryotic Cells — £2.99
  9. Textbook: Organelle Involvement in Protein Synthesis — £3.99
  10. Textbook: Water — £1.99
  11. Textbook: Introduction to Macromolecules — £1.99
  12. Textbook: Carbohydrates — £3.99
  13. Textbook: Lipids — £5.49
  14. Textbook: Proteins — £5.49
  15. Textbook: Inorganic Ions — £0.01
  16. Textbook: Chemical Tests for Biomolecules — £2.99
  17. Textbook: Colorimetry — £3.99
  18. Textbook: Chromatography — £2.99
  19. Textbook: Nucleotides and Nucleic Acids — £3.99
  20. Textbook: DNA Replication — £5.49
  21. Textbook: Genetic Code — £2.99
  22. Textbook: Protein Synthesis — £5.49
  23. Textbook: Enzymes — £3.99
  24. Textbook: Cofactors and Inhibitors — £3.99
  25. Textbook: Factors Affecting Enzyme Activity — £5.49
  26. Textbook: Biological Membranes — £5.49
  27. Textbook: Transport Across Membranes — £5.49
  28. Textbook: Water Potential and Osmosis — £3.99
  29. Textbook: Eukaryotic Cell Cycle — £2.99
  30. Textbook: Mitosis and Cytokinesis — £2.99
  31. Textbook: Meiosis — £2.99
  32. Textbook: Stem Cells — £2.99
  33. Textbook: Organisation in Animals — £1.99
  34. Textbook: Organisation in Plants — £1.99
  1. Textbook: Exchange Surfaces — £3.99
  2. Textbook: Observing Exchange Surfaces — £3.99
  3. Textbook: Mammalian Gaseous Exchange System — £3.99
  4. Textbook: Mammalian Ventilation — £3.99
  5. Textbook: Oxygen Uptake in Mammals — £3.99
  6. Textbook: Measuring Oxygen Uptake in Mammals — £5.49
  7. Textbook: Ventilation and Gas Exchange in Gills — £3.99
  8. Textbook: Ventilation and Gas Exchange in Insects — £2.99
  9. Textbook: Comparing Gas Exchange Systems — £2.99
  10. Textbook: Transport Systems in Animals — £5.49
  11. Textbook: Blood Vessels — £2.99
  12. Textbook: The Heart — £5.49
  13. Textbook: Coordination of the Cardiac Cycle — £5.49
  14. Textbook: Erythrocytes and Oxygen Transport — £5.49
  15. Textbook: Carbon Dioxide — £3.99
  16. Textbook: Tissue Fluid Formation — £5.49
  17. Textbook: The Need for Transport Systems in Plants — £1.99
  18. Textbook: Plant Vascular Systems — £3.99
  19. Textbook: Interpreting Photomicrographs of Plant Tissue — £3.99
  20. Textbook: Plant Transport of Water — £5.49
  21. Textbook: Plant Adaptations to Water — £2.99
  22. Textbook: Translocation — £5.49
  1. Textbook: Communicable Diseases — £3.99
  2. Textbook: Plant Defences Against Pathogens — £3.99
  3. Textbook: Non-Specific Defences in Animals — £3.99
  4. Textbook: Introduction to White Blood Cells — £3.99
  5. Textbook: Secondary Defences — £5.49
  6. Textbook: B and T Lymphocytes — £3.99
  7. Textbook: The Primary and Secondary Immune Response — £1.99
  8. Textbook: Immunity — £2.99
  9. Textbook: Antibodies — £3.99
  10. Textbook: Autoimmune Diseases — £2.99
  11. Textbook: Vaccination and Epidemics — £3.99
  12. Textbook: Developing New Medicines — £3.99
  13. Textbook: Antibiotics and Their Use — £3.99
  14. Textbook: Biodiversity — £1.99
  15. Textbook: Human Impact on Biodiversity — £1.99
  16. Textbook: Conserving Biodiversity — £3.99
  17. Textbook: Conservation Agreements — £1.99
  18. Textbook: Measuring Biodiversity — £3.99
  19. Textbook: Calculating Biodiversity — £3.99
  20. Textbook: Measuring Genetic Biodiversity — £5.49
  21. Textbook: Variation — £5.49
  22. Textbook: Causes of Variation — £3.99
  23. Textbook: Adaptations — £3.99
  24. Textbook: Natural Selection — £3.99
  25. Textbook: Evolution and Speciation — £5.49
  26. Textbook: Evidence for Natural Selection — £3.99
  27. Textbook: Charles Darwin and Alfred Russel Wallace — £1.99
  28. Textbook: Classification — £2.99
  29. Textbook: Phylogenetics — £1.99

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Quick note: All resources are for personal use only. Please don’t redistribute or resell. Content is accurate as of 2025 but always refer to the official OCR specification.

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