A) one fatty acid and one glycerol
B) one fatty acid and three glycerols
C) three fatty acids and three glycerois
D) three fatty acids and one glycerol
Correct Answer: D
Solution :
Alcohol have a hydroxyl group (-OH) and organic acids have a carboxyl group (-COOH). When alcohol and organic acids join, they form esters. The glycerol molecule has three hydroxyl group and each fatty acid has three carboxyl group. Hence, a triglyceride (triacylglyceride) an ester is formed from the reaction between three fatty acids and one glycerol.
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