This publication provides an introduction to applied biochemical science and its fields. The focus lies on carbohydrate, saccharides, lipid, glycerol, fatty acid, protein and amino acid. The subject area of nucleic acid, DNA, RNA, nucleotide and gluconeogenesis are covered. An overview of plant biochemistry, metabolism and enzyme is provided. Applications of molecular chemistry, bioluminescence, biological psychiatry, hypothetical types of biochemistry, carbon chauvinism, chemical ecology and nucleic acid analogues are described. Contents: Introduction to Applied Biochemical Science and Its Fields; Focus on Carbohydrate, Saccharides and Lipid; Focus on Glycerol, Fatty Acid, Protein and Amino Acid; Nucleic Acid, DNA, RNA, Nucleotide and Gluconeogenesis; Plant Biochemistry, Metabolism and Enzyme: An Overview; Towards Understanding Immunology, Genetics and Genetic Engineering; Towards Understanding the Applications of Molecular Chemistry, Bioluminescence and Biological Psychiatry; Hypothetical Types of Biochemistry, Carbon Chauvinism, Chemical Ecology and Nucleic Acid Analogues.