This document provides an overview of primary metabolites presented by Vaibhavi V. Meshram. It discusses the introduction of primary metabolites including carbohydrates, proteins and enzymes, lipids, and marine drugs. Specific primary metabolites are explained in more detail, including acacia, agar, tragacanth, honey, gelatin, casein, proteolytic enzymes like papain, bromelain, serratiopeptidase, urokinase, streptokinase, and pepsin. Castor oil is also discussed. The document provides the names, sources, chemical constituents, identification tests, and uses of various primary metabolites.