Biochemistry refers to the analysis of chemical reactions that occur in living beings and other forms of organic matter. Biochemistry is the overarching science that controls all aspects of life. Biological reactions give birth to life’s extraordinary complexities by regulating the information that flows through biochemical signaling and the movement of chemical energies through metabolic activities. This book includes the functioning of cells and organisms, Cell and Its Structure, Types of Cells, Cell Components and Their Functions, Nucleus, Structure and function of the Nucleus, Protoplasm, Carbohydrates, Amino Acids, General Structure of Amino Acids, Peptide, Protein, Denaturation, Biuret Reaction, Lipids, Classifications of Lipids, Nucleic Acid, Enzymes and many more. This book can be beneficial for the readers from the field of Biochemistry or for the students pursuing medical and cells and nutrients. This book was written to help and guide the reader to understand the working of Biochemistry in as simple form as they can.