MDCAT Biology MCQ #947

A nutritionist compares animal lard with vegetable oil. Why does the lard remain solid at room temperature while the oil is liquid?

MDCAT Biology MCQ #947

  1. Question 1

    Q1. A nutritionist compares animal lard with vegetable oil. Why does the lard remain solid at room temperature while the oil is liquid?

    • A) High concentration of double bonds between carbon atoms
    • B) Lower melting point than plant-derived oils
    • C) Presence of branched hydrocarbon chains
    • D) Absence of double bonds in the acyl chains

    Answer: Absence of double bonds in the acyl chains

    Explanation: Saturated fatty acids lack double bonds and are solid at room temperature. Unsaturated fats have double bonds and remain liquid.