Biochemistry is the study of chemical within and relating to living organisms. Investigation of the network of chemical reactions taking place in living organisms and representing the most fundamental phenomena of life, identification of the molecules playing roles in biochemical processes, determination of their structure, function and interactions, examination of the molecular background of metabolism, the flow of energy and information within organisms are all among the common goals of biochemists and molecular biologists.
Clinical chemistry is a clinical and diagnostics department, which aims to put forward, improve and use standard diagnostic methods, to monitor disease development and treatment by biochemical methods. Clinical biochemistry helps to make diagnosis, choice of treatment and prophylactic methods easier. It possesses the largest number of diagnostic tests that help understand pathogenesis and etiology of different pathological processes. Information, obtained by biochemical methods help to evaluate the development of pathological process on molecular, cellular and organ level. It is essential for early diagnosis of a disease and also assessment of its therapy efficacy.