MDCAT Biology MCQ #654

Cotton fiber is almost pure cellulose. Based on its chemical properties in the PTB, how does this molecule behave in an aqueous environment?

MDCAT Biology MCQ #654

  1. Question 1

    Q1. Cotton fiber is almost pure cellulose. Based on its chemical properties in the PTB, how does this molecule behave in an aqueous environment?

    • A) Highly soluble in hot water
    • B) Soluble in organic solvents
    • C) Highly insoluble in water
    • D) Soluble in dilute acids

    Answer: Highly insoluble in water

    Explanation: Cellulose is highly insoluble in water. Starch is partially soluble (amylose) or insoluble (amylopectin), but cellulose is the most resistant.