an intermediate switch is a switch of 4 terminals which is used to control devices from more than 2 locations if you want to control a device eg lamp from one locati on you use a normal switch you could see two terminals behind it
Fatty acids are made from carbon, hydrogen and oxygen. Fatty acids are constructed from the chemical elements carbon, oxygen and hydrogen. Fatty acids can be divided into a carboxylic acid head groupâhence fatty acidâlinked to a long chain of carbon atoms. The bond between the carbon atoms stores a large amount of biochemical energy and is very stable, allowing fats to be an efficient long-term store of energy in your body.
- Generally long, straight chains of carbon atoms (4-22 carbon atoms) with hydrogen atoms (hydrocarbons) or alkyl groups attached and characterized by a terminal carboxyl group (COOH, acid) - They are derived from, or contained in an animal fat or vegetable oil. - Fatty acids are the building blocks of fats. - These long, straight chains combine with a glycerol molecule to form lipids (glycerol lipids) - Most naturally occurring fatty acids contan an even number of carbon atoms. - The 18-carbon fatty acids are the most abundant. - The tail of a fatty acid is a long hydrocarbon chain, making it hydrophobic.