MDCAT Biology MCQ #688

A researcher is analyzing a lipid sample that provides a protective, water-repellent coating on plant leaves. Which component is uniquely absent in this wax compared to acylglycerols?

MDCAT Biology MCQ #688

  1. Question 1

    Q1. A researcher is analyzing a lipid sample that provides a protective, water-repellent coating on plant leaves. Which component is uniquely absent in this wax compared to acylglycerols?

    • A) Three fatty acids
    • B) Ester linkages
    • C) Long-chain alkanes
    • D) Glycerol backbone

    Answer: Glycerol backbone

    Explanation: Waxes lack glycerol, containing long-chain alcohols instead. Acylglycerols are tempting because they are common lipids, but they always contain a glycerol backbone.