International Baccalaureate · IB Diploma · Biology · HL

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• 1 1A.1.1 · Water
• 2 2A.1.2 · Nucleic acids
• 3 3A.2.1 · Origins of cells
• 4 4A.2.2 · Cell structure
• 5 5A.2.3 · Viruses
• 6 6A.3.1 · Diversity of organisms
• 7 7A.3.2 · Classification and cladistics
• 8 8A.4.1 · Evolution and speciation
• 9 9A.4.2 · Conservation of biodiversity
• 10 10B.1.1 · Carbohydrates and lipids
• 11 11B.1.2 · Proteins
• 12 12B.2.1 · Membranes and membrane transport
• 13 13B.2.2 · Organelles and compartmentalization
• 14 14B.2.3 · Cell specialization
• 15 15B.3.1 · Gas exchange
• 16 16B.3.2 · Transport
• 17 17B.3.3 · Muscle and motility
• 18 18B.4.1 · Adaptation to environment
• 19 19B.4.2 · Ecological niches
• 20 20C.1.1 · Enzymes and metabolism
• 21 21C.1.2 · Cell respiration
• 22 22C.1.3 · Photosynthesis
• 23 23C.2.1 · Chemical signalling
• 24 24C.2.2 · Neural signalling
• 25 25C.3.1 · Integration of body systems
• 26 26C.3.2 · Defence against disease
• 27 27C.4.1 · Populations and communities
• 28 28C.4.2 · Transfer of energy and matter
• 29 29D.1.1 · DNA replication
• 30 30D.1.2 · Protein synthesis
• 31 31D.1.3 · Mutations and gene editing
• 32 32D.2.1 · Cell and nuclear division
• 33 33D.2.2 · Gene expression
• 34 34D.2.3 · Water potential
• 35 35D.3.1 · Reproduction
• 36 36D.3.2 · Inheritance
• 37 37D.3.3 · Homeostasis
• 38 38D.4.1 · Natural selection
• 39 39D.4.2 · Sustainability and change
• 40 40D.4.3 · Climate change
• 41 41Practical · Experimental programme