Which functional groups make up a Triglyceride (triacylglycerol) fat or oil molecule?
Answer and explanation
Correct answer: C. Glycerol esterified with three fatty acid molecules
- Step 1: Glycerol is a trihydric alcohol with three -OH groups (propane-1,2,3-triol). Step 2. Esterification of all three hydroxyl groups with fatty acid chains produces a neutral triacylglycerol (fat or oil). Answer: Glycerol esterified with three fatty acid molecules. Why not the others: Sphingosine with carbohydrate forms glycolipids; four fused rings forms steroids; two fatty acids and phosphate forms phospholipids.
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