MDCAT Biology MCQ #867

A student examines a structural diagram of a hexose sugar and notices the carbonyl group is located on the second carbon. Which molecule is being observed?

MDCAT Biology MCQ #867

  1. Question 1

    Q1. A student examines a structural diagram of a hexose sugar and notices the carbonyl group is located on the second carbon. Which molecule is being observed?

    • A) Glucose
    • B) Fructose
    • C) Galactose
    • D) Ribose

    Answer: Fructose

    Explanation: Fructose is a keto-sugar with the carbonyl group on carbon 2, whereas Glucose is an aldo-sugar with the group on carbon 1.