Cell is the fundamental unit of life. The chemical, metabolic and physiological processes of cell organelles, as well as their interactions with their environment together are studied in cellular biology. Cell biology examines cell's life cycle which includes the study of the fundamental structures and functions of cell as well as an analysis of the different signaling pathways within the cell. Research in cellular biology is of significance in the field of genetics, biochemistry, molecular biology, immunology, etc. There has been rapid progress in this field and its applications are finding their way across multiple industries. This book covers in detail some existing theories and innovative concepts revolving around this field. It contains some path-breaking studies in the area of cell biology contributed by international experts. Cell biologists, geneticists, bioengineers, academicians and students will benefit alike from this book.