As a field of science, biology helps us understand the living world and the ways its many function, evolve, and interact. This guide book has covered a range of syllabus and the student is an easy way to go through this book content. The chapters have been so arranged to give a sequential knowledge of the introductory basic biochemistry, enzymology, cell biology and molecular biology, techniques in biochemistry, biotechnology, plant and animal tissue culture in this guide book. This book would serve not only for undergraduate but postgraduate students of all life science students, and also research scholars of various universities.