The college students to find difficult to understand the subject taught to mainly due to understand standard references. While preparing this "THE TEXT BOOK OF CELL BIOLOGY" (A Revised Syllabus based on Periyar University) has been prepared to serve the special purpose of college students. This book explains the advanced Research in cell biology in a simplified manner. This book can be used for UG and PG zoology students, who are looking for a quick revision before the semester Examination. This book has been written to students and preparatory the field of Life science & zoology , no such book which cover suitable picture with needed explanation, General principles of Medical Nutrition studies and create awareness to public and practice.