Why does protein and Biuret reagent turn blue when heated?
Tests For Organic Compounds The structures of cells are made up of many different chemical molecules. Most of the common molecules found in living things belong to four classes of carbon-containing molecules: carbohydrates, lipids, proteins, and nucleic acids. Cell metabolism involves the production and destruction of many types of molecules. In order to maintain life, cells metabolize compounds from the foods we eat. Metabolism is the sum total of all of the chemical reactions in your body. The metabolism includes catabolic reactions (compound building) and anabolic reactions (compound breaking). Objectives ~ To determine the presence of starch by a chemical test ~ To analyze solutions for the presence of simple reducing sugars. ~ To analyze a sample of vegetable oil for the presence of lipids. ~ To analyze a sample of gelatin for the presence of protein. Materials vegetable oil 95% ethanol test tubes (4) wax marking pencil tap water glucose solution biuret regent test-tube holder dro
