The document defines and compares different types of lipids, including triglycerides, waxes, steroids, phospholipids, proteins, and nucleic acids. It describes the elemental composition, examples, subunits, and functions of each type. Triglycerides, for example, are composed of carbon, hydrogen, and oxygen, with examples including fats and oils. Their subunits are three fatty acids and glycerol, and their functions include energy storage and insulation.

22. Examples of Amino Acid. There are 20 different kinds. The R groups make each amino acid unique.

26. Enzyme as a catalyst

27. This image shows how an enzyme is used to take a disaccharide and break it down to its monomers. Please study this picture.

33. Using a new page in your composition book, take notes on following characteristics of water.