MDCAT Biology MCQ #920

Earwax (cerumen) protects the ear canal from dust and insects. Chemically, these protective substances belong to which class of lipids?

MDCAT Biology MCQ #920

  1. Question 1

    Q1. Earwax (cerumen) protects the ear canal from dust and insects. Chemically, these protective substances belong to which class of lipids?

    • A) Phospholipids
    • B) Waxes
    • C) Terpenoids
    • D) Acylglycerols

    Answer: Waxes

    Explanation: Waxes are esters of long-chain fatty acids and alcohols used for protection. Phospholipids are tempting but they are primarily structural components.