MDCAT Biology MCQ #816

An exoskeleton of an arthropod is chemically treated to identify its carbohydrate component. The results show a nitrogen-containing polysaccharide. This molecule is:

MDCAT Biology MCQ #816

  1. Question 1

    Q1. An exoskeleton of an arthropod is chemically treated to identify its carbohydrate component. The results show a nitrogen-containing polysaccharide. This molecule is:

    • A) Cellulose
    • B) Glycogen
    • C) Chitin
    • D) Amylopectin

    Answer: Chitin

    Explanation: Chitin is a structural polysaccharide containing nitrogenous groups, unlike cellulose which is a pure hydrocarbon-based polymer. Glycogen is a storage polymer.