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.
LIPIDS Each lipid molecule has a polar head and two non-polar tails. The polarity in the head results from the molecular interaction between the oppositely charged phosphate and nitrogen groups. The resulting dipole makes this part of of the molecule polar and, therefore, water soluble.It is called the hydrophilic, or water-loving, portion of the lipid molecule. In contrast, the two tails of each lipid molecule are non-polar and water insoluble.They are composed of long-chain fatty acids which are hydrophobic, or water-hating, in nature.t is called the hydrophilic, or water-loving, portion of the lipid molecule. In contrast, the two tails of each lipid molecule are non-polar and water insoluble. They are composed of long-chain fatty acids which are hydrophobic, or water-hating, in nature.