Chemical identification of biomolecules rvfm 360 002 understand the importance of proteins carbohydrates and lipids in living organisms students will learn to identify a positive test result for proteins using biuret reagent examine the reaction between benedict 39 s reagent and a simple sugar use iodine potassium iodide to test for the presence of starch and test for the presence of lipids using a fat soluble dye rvfm chemical identification of biomolecules