The present book “Food Chemistry and Chemistry of Living System” is primarily designed for undergraduate and postgraduate students of community science (home science), food technology, food science and human nutrition, agriculture, biochemistry, microbiology and biotechnology. In this book, questions are substantially acquired from different competitive examinations. A wide coverage of entire subject divided into eight chapters viz. Food, Carbohydrates, Vitamins and Minerals, Proteins, Nucleic acids, Lipids, Enzymes & Fatty acids, Structure and Function of Cell Organelles, Reactions, Cycles and Phenomena. This book consists of Chapter-wise objective type questions like Multiple Choice, Fill in the Blanks, Mark True or False and Match the Column will enable the readers/aspirants to update their knowledge quickly. This book would be very useful for those appearing for various competitive examination, like Post-graduate, SAUs Entrance, Ph.D. JRF, ARS, ICAR- NET, SET, Civil Service Examinations (State and Central), Agricultural Officer, Bank (PO) (Agriculture), ADO and Allied Agricultural Examinations.