Plant Biochemistry & Physiology deals with the cellular and molecular biology and interaction between bimolecules along with the study of photosynthesis, respiration, plant nutrition, plant hormone functions which are associated with plant morphology, ecology and environmental effects on plants. Plant biochemistry science marked a good importance in the field of research in modern era. Phytochemistry is the study of phytochemicals, which are chemicals derived from plants. Those studying phytochemistry strive to describe the structures of the large number of secondary metabolic compounds found in plants, the functions of these compounds in human and plant biology, and the biosynthesis of these compounds. Plants synthesize phytochemicals for many reasons, including protecting themselves against insect attacks and plant diseases.