What you’ll learn9 learning objectivesChoose one objective for a focused lesson, or study the complete topic.2.3.1Amino acids and peptide bonds• General structure of amino acids and peptide bond formation/breakageSyllabus objective2.3.2Protein structure levels• Protein structure levels: primary, secondary, tertiary, quaternarySyllabus objective2.3.3Interactions holding protein shape• Interactions holding protein shape:- Hydrophobic interactions- Hydrogen bonding- Ionic bonding- Covalent bonding (including disulfide bonds)Syllabus objective2.3.4Globular proteins• Globular proteins: soluble, physiological rolesSyllabus objective2.3.5Fibrous proteins• Fibrous proteins: insoluble, structural rolesSyllabus objective2.3.6Haemoglobin quaternary structure• Haemoglobin structure: quaternary structure with 2α-globin chains, 2β-globin chains, haem groupSyllabus objective2.3.7Haemoglobin function• Haemoglobin function: importance of iron in haem groupSyllabus objective2.3.8Collagen structure• Collagen structure and arrangement into collagen fibresSyllabus objective2.3.9Collagen structure and function• Relate collagen structure to functionSyllabus objective