This video tells us about the amino acids biosynthesis and nitrogen metabolism in its context. Proteins are essential macromolecules for a living system. 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. TIMELINE: 0:01 Introduction 0:10 Nitrogen Metabolism in context 0:50 Table for essential and nonessential amino acids 1:28 Amino acid biosynthesis 1:58 Overview of biosynthesis 2:58 End