This book aims to provide a detailed exploration of the structure and function of cells and their molecular components. It covers the fundamental concepts of cell biology, including cell structure, signaling, and division. The book also addresses molecular biology techniques and their applications in research and medicine. It is intended for students, researchers, and educators in the life sciences, offering comprehensive insights into cellular and molecular processes. By enhancing understanding of cell and molecular biology, the book seeks to advance scientific knowledge and its applications in health and disease.