Question

Triglyceride consists of
(A) Three fatty acids+ two glycerols
(B) Three fatty acids+ one glycerols
(C) One fatty acids+ one glycerols
(D) One fatty acids+ three glycerols

Answer 1

Hint: Fats are stored and preserved in the body as it provides energy whenever body requires. Fats are usually composed of fatty acids and glycerol and are formed through ester bonding. As the fats are composed of three fatty acids and one glycerol moieties, they are also referred to as triglycerides.

Complete answer:
- Triglycerides are composed of three moieties of fatty acids and one unit of glycerol. The carboxyl end present in the fatty acids gets combined with the three hydroxyl ( -OH) bonds present in the glycerol molecule and forms esters.
- The triglycerides are the esters and are named as per the constituent of the fatty acid. For example, tristearin comprises three units of stearic acid, and oleo distearin, one unit of oleic acid and two units of stearic acid.
- Triglycerides are mostly found in our blood. When we consume any diet, our body converts any of the calories it does not require to use straightway into triglycerides. The triglycerides are accumulated in our fat globules or cells.
- Afterward, hormones release the triglycerides for the required energy during the meals. A fat moiety is a lipid type which comprises three fatty acid units linked to a backbone of $3$ carbon glycerol, further linked with an ester bond by oxygen atom.
- Moreover, the three fatty acids could differ from each other. When the formation of ester bonds takes place the three molecules get released.

Note: Glycerol is a tiny organic moiety which comprises three hydroxyl (-OH) groups, whereas a fatty acid is composed of elongated chains of hydrocarbons linked to a carboxyl group.