Explain fats in biological compound, Biology

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Explain Fats in biological compound?

Fats :  Monoglycerides, diglycerides, and triglycerides are fats consisting of a backbone of the alcohol molecule glycerol, consisting of a three-carbon chain, combined with one, two, or three fatty acid chains, respectively. The prefixes mono-, di-, and tri- are derived from Greek words meaning one, two, and three, and refer to the number of fatty acid chains.

A fatty acid is a long chain molecule of carbon and hydrogen atoms (consisting of 4 to 24 carbon atoms) with a carboxyl group attached to the carbon atom on the end. Fatty acids are said to be saturated if they contain no double bonds between the carbon atoms, and unsaturated if one or more double bonds are present. If there are many carbon-to-carbon double bonds, then it is said to be polyunsaturated.

The hydrocarbon end of a fatty acid is hydrophobic, and the polar carboxyl end of the molecule, conversely, is hydrophilic. Fatty acids combined with proteins are called lipoproteins; fatty acids combined with carbohydrates are called glycolipids.
Triglycerides that are solid at room temperature are referred to as fats, and are usually saturated. Triglycerides that remain liquid at room temperature are called oils, and are generally more unsaturated than the solid fats.

 

 


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