B: Form and function
Master IB Biology B: Form and function with notes created by examiners and strictly aligned with the syllabus.
B1.1
Carbohydrates and lipids
Carbon bonding, Condensation and hydrolysis, Monosaccharides, Polysaccharides, Lipids, Bilayers, Steroids
B1.2
Proteins
Amino acids, Peptide bonds, Protein structure, Denaturation, Form and function
B2.1
Membranes and membrane transport
Lipid bilayers, Selective permeability, Diffusion, Osmosis, Active transport, Vesicles, Cell adhesion
B2.2
Organelles and compartmentalization
Organelles, Compartmentalization, Cell fractionation, Nucleus, Mitochondria, Chloroplasts, Endomembrane system
B2.3
Cell specialization
Stem cells, Differentiation, Cell size, Surface area-to-volume ratio, Specialized cells
B3.1
Gas exchange
Diffusion, exchange surfaces, ventilation, alveoli, leaves, transpiration, stomatal density, haemoglobin affinity
B3.2
Transport
Pressure gradients, Blood vessels, Transpiration, Xylem and phloem, Heart and circulation
B3.3
Muscle and motility
Sliding filaments, Titin, Motor units, Levers, Synovial joints, Locomotion
B4.1
Adaptation to environment
Habitats, Abiotic factors, Tolerance ranges, Coral reefs, Biomes, Convergent evolution
B4.2
Ecological niches
Niches, nutrition, dentition, predator-prey adaptations, competition
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