This book contains detail illustration about of Plant and animal cell ranging from history, origin, evolution theories of cell, various cell organelles and their functions. It is an excellent book for students, researchers and teacher. This book describes detail information about various processes of cell such as endocytosis, exocytosis, transcription and translation, Photosynthesis, oxidation of organic molecule, reductions of molecules. This book helps to understand diversity and Chemistry of cell. It also explains properties of Prokaryotic and Eukaryotic cell. Chapter 04 discuss in details about properties and functions of proteins. Discussion starts form amino acid, protein levels of structural organization, physicochemical properties of Protein, electrochemistry of protein to Hormones. Soul of cell is DNA and Chromosome. Chapter 04 focuses of DNA and Chromosome. Chapter 6 explains the catalysis and the use of energy by cells. While, chapter 7 and chapter describe in detail about plant cell and animal cell respectively. Over all this book makes informative and interesting reading. Any biologist who wishes to acquire a deep knowledge of the fundamentals of cell and its functions, he will find the concentrated and thorough knowledge presented here.