MDCAT Biology MCQ #942

An endocrinologist studies a steroid hormone derived from cholesterol. Which structural feature is characteristic of all steroid molecules?

MDCAT Biology MCQ #942

  1. Question 1

    Q1. An endocrinologist studies a steroid hormone derived from cholesterol. Which structural feature is characteristic of all steroid molecules?

    • A) Long hydrocarbon chains
    • B) Four fused rings
    • C) Glycerol backbone
    • D) Phosphate group

    Answer: Four fused rings

    Explanation: Steroids like cholesterol consist of four fused carbon rings; though lipids, they do not contain the long-chain hydrocarbons of acylglycerols.