This video tells us about the macromolecule protein and its structural configuration.Proteins are made up of chemical 'building blocks' called amino acids. Video covers the basic introduction, types of amino acids and types of protein structures in detail. The time zone also covers the uses of protein in physiological functions of the body. TIMELINE: 0:04 Introduction 0:44 Amino acids introduction 1:50 Protein 2:23 Hydrophobic amino acids 2:35 Hydrophilic amino acids 3:50 Secondary structure 5:24 Proline 6:00 Tertiary structure 6:39 Quaternary structure 7:14 Types of proteins 7:24 Structure, immunity, enzymes 8:38 Receptors, transport 9:54 Summary 10:36 End