Which of the following is NOT built from fatty acids?
- A. Triglyceride
- B. Steroid
- C. Phospholipid
- D. Wax
Explanation
Steroids such as cholesterol and testosterone are built from four fused carbon rings and contain no fatty acid chains. Triglycerides, phospholipids and waxes all contain fatty acids esterified to an alcohol, which is why they but not steroids are called saponifiable lipids.
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