Most people kill them in two or 3 years. Those that keep them well charged, and Maintain them sometimes get 8 or 10 years, but probably NOT from current productionââââ-MEXICANââââ built Interstate brand batteries, which are , let us say, not quite as good as the old ones.
Lipids ï½ Lipids ï½ Molecules made up of mostly carbon and hydrogen atoms (and some oxygen atoms too) ï½ Nonpolar covalent bonds ï½ Hydrophobic ï½ Insoluble in water ï½ Can be identified by the 2 key parts of their assembly: one glycerol backbone and 3 long carbon chains (fatty acids)â¦ ï½ Far greater than 2:1 H:O ratio.
This is the last class of macromolecules. Unlike the previous groups, however, lipids are a chemically diverse group of molecules that all share a common property: they are (relatively) insoluble in water due to their hydrophobicity (and thus soluble in other lipids).t also serves as the precursor molecule for the synthesis of other steroids including bile salts (aids in the digestion of fats) and steroid hormones (such as testosterone, estrogen, progesterone, and cortisol). 3. Phospholipids: This class of lipids are really derivatives of triglycerides.