Which is not an example of a lipid?
a) phenol
b) triacylglycerol
c) cholesterol
d) wax

The correct answer is: A) phenol

Phenol is an aromatic organic molecule that consists of phenyl group (−C6H5) bonded to a hydroxyl group (−OH). This compound is very useful in industry for the synthesis of plastics, nylon, detergents, herbicides etc.

Triacylglycerol consists of glycerol and three fatty acids and it is one of the main constituents of body fat.

Cholesterol is a lipid molecule necessary for the synthesis of plasma membrane

Waxes are organic compounds that include higher alkanes and lipids produced by plants and animals.

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