Biochemistry has become the foundation for understanding all biological processes and this book in Biochemistry was designed to help students understand the Biological important compounds. The main purpose of book is to provide information on the fundamental aspects of biochemistry and the structure and dynamics of important cellular components and broadened our understanding of how biochemical changes relate to physiological alteration in the body. The author of book is not claiming sole ownership of the information contained in this book. Many of these of the information, graphics, and illustrations were adapted from the work of different authors and from open education learning resources. Hopefully, the activities to activate your prior knowledge and synthesize your learnings will motivates you to deepen your understanding in each topic.