MDCAT Biology MCQ #793

A premature infant develops Respiratory Distress Syndrome due to the lack of a lipid-based surfactant in the lungs. This surfactant is primarily composed of:

MDCAT Biology MCQ #793

  1. Question 1

    Q1. A premature infant develops Respiratory Distress Syndrome due to the lack of a lipid-based surfactant in the lungs. This surfactant is primarily composed of:

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

    Answer: Phospholipids

    Explanation: Phospholipids like lecithin act as surfactants in lungs to reduce surface tension. Acylglycerols are energy storage fats, not structural surfactants.