MDCAT Biology MCQ #693

While studying the exoskeleton of an arthropod, a biologist identifies a carbohydrate that contains nitrogen. Which molecule is being described?

MDCAT Biology MCQ #693

  1. Question 1

    Q1. While studying the exoskeleton of an arthropod, a biologist identifies a carbohydrate that contains nitrogen. Which molecule is being described?

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

    Answer: Chitin

    Explanation: Chitin is a structural polysaccharide that contains nitrogen in its monomer units. Cellulose is tempting as a structural polymer, but it consists only of glucose.