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.
Lipids are important component of cell membranes structure in eukaryotic cells. Lipids regulate membrane permeability. They serve as source for fat soluble vitamins like A, D, E, K. They act electrical insulators to the nerve fibres, where the myelin sheath contains lipids.Lipids are components of some enzyme systems.imple lipids are the esters of fatty acids with various alcohols. Fats and Oils (triglycerides and triacylglycerols) - These are esters of fatty acids with a trihydroxy alcohol, glycerol. A fat is solid at ordinary room temperature, an oil is liquid.