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.
Compare the differences between saturated, trans, unsaturated, monounsaturated, and polyunsaturated fats and know food sources of each. A saturated fatty acid has each carbon within the fatty acid chain completely fi lled with hydrogen atoms. An unsaturated fatty acid has two neighboring carbons within the chain that are missing two hydrogen atoms. Monounsaturated fatty acids have one dou-ble bond within the carbon chain; polyunsaturated fatty acids have two or more double bonds within the carbon chain. Trans fats are unsaturated fatty acids that have at least one trans double bond. The trans shape enables the hydrocarbon chain to be relatively straight.