Biology Notes for IB Diploma Students (SL and HL): All 40 Topics

What you get

• All 40 topics of IB Diploma Biology for students taking Standard Level or Higher Level (first assessment 2025): water, nucleic acids, the origin of cells, cell structure, viruses, diversity and classification, evolution and speciation, conservation, carbohydrates, lipids and proteins, membranes, organelles, cell specialization, gas exchange, transport, muscle and motility, adaptation and niches, enzymes and metabolism, cell respiration, photosynthesis, chemical and neural signalling, integration of body systems, defence against disease, populations and communities, transfers of energy and matter, DNA replication, protein synthesis, mutation and gene editing, cell division, gene expression, water potential, reproduction, inheritance, homeostasis, natural selection, stability and change, climate change
• Every syllabus statement covered in order, each marked SL or HL, with clear notes, tables and diagrams drawn for these notes
• Worked examples in every topic: calculations and model answers that show how to earn the marks
• Original Paper 1A-style multiple-choice questions with explained answers, plus Paper 2-style structured and data-based questions with full mark schemes (no past-paper reprints)
• Common mistakes and investigation (internal assessment) ideas for every topic
• Quick-reference sheet and an "I can" checklist at the end of every topic
• Colour PDF and a black and white copy of every chapter for printing
• Independent notes for IB Diploma students; not endorsed by or affiliated with the International Baccalaureate Organization (IBO)

Chapters in this pack

1. Ch 1 A1.1 Water
2. Ch 2 A1.2 Nucleic acids
3. Ch 3 A2.1 Origins of cells
4. Ch 4 A2.2 Cell structure
5. Ch 5 A2.3 Viruses
6. Ch 6 A3.1 Diversity of organisms
7. Ch 7 A3.2 Classification and cladistics
8. Ch 8 A4.1 Evolution and speciation
9. Ch 9 A4.2 Conservation of biodiversity
10. Ch 10 B1.1 Carbohydrates and lipids
11. Ch 11 B1.2 Proteins
12. Ch 12 B2.1 Membranes and membrane transport
13. Ch 13 B2.2 Organelles and compartmentalization
14. Ch 14 B2.3 Cell specialization
15. Ch 15 B3.1 Gas exchange
16. Ch 16 B3.2 Transport
17. Ch 17 B3.3 Muscle and motility
18. Ch 18 B4.1 Adaptation to environment
19. Ch 19 B4.2 Ecological niches
20. Ch 20 C1.1 Enzymes and metabolism
21. Ch 21 C1.2 Cell respiration
22. Ch 22 C1.3 Photosynthesis
23. Ch 23 C2.1 Chemical signalling
24. Ch 24 C2.2 Neural signalling
25. Ch 25 C3.1 Integration of body systems
26. Ch 26 C3.2 Defence against disease
27. Ch 27 C4.1 Populations and communities
28. Ch 28 C4.2 Transfers of energy and matter
29. Ch 29 D1.1 DNA replication
30. Ch 30 D1.2 Protein synthesis
31. Ch 31 D1.3 Mutation and gene editing
32. Ch 32 D2.1 Cell and nuclear division
33. Ch 33 D2.2 Gene expression
34. Ch 34 D2.3 Water potential
35. Ch 35 D3.1 Reproduction
36. Ch 36 D3.2 Inheritance
37. Ch 37 D3.3 Homeostasis
38. Ch 38 D4.1 Natural selection
39. Ch 39 D4.2 Stability and change
40. Ch 40 D4.3 Climate change