Biological chemistry encompasses the study of the form and function of the proteins, lipids, carbohydrates, and nucleic acids found in living organisms. Biological chemistry also called as biochemistry which is the study of chemical processes relating to living organisms. Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.