MDCAT Biology MCQ #983

In a diagram of a hexose sugar, a student observes that the hydroxyl group on Carbon-4 is oriented upwards. Which carbohydrate is identified?

MDCAT Biology MCQ #983

  1. Question 1

    Q1. In a diagram of a hexose sugar, a student observes that the hydroxyl group on Carbon-4 is oriented upwards. Which carbohydrate is identified?

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

    Answer: Galactose

    Explanation: Galactose has the hydroxyl group above Carbon-4; Glucose is tempting because its C4 hydroxyl group is oriented downwards in diagrams.