PMB addresses allow small businesses to have a professional-looking street address, have someone available during regular delivery hours to sign for letters or packages, pick up the mail at convenient hours, and retain privacy, which can be important for the owners of home-based businesses.
The main â¦ functions of lipids are energy storage, as structural components of cell membranes, and as important signaling molecules.ipids have six major functions. They store energy, they are a  shock absorber, they are structural components in cell membranes,  they are precursors of hormones, they are â¦ insulation, and they aid  in the absorption of vitamins.
The five functions of lipids include: 1  Acting as an energy source - although the body uses carbohydrates as its primary form of energy, it can turn to lipids when it needs a reserve. Most people weighing 154 pounds have enough lipids to carry them through 24 to 30 days without food.