MDCAT Biology MCQ #2942

A person with lactose intolerance lacks the enzyme lactase in their small intestine. What is the primary function of lactase?

MDCAT Biology MCQ #2942

  1. Question 1

    Q1. A person with lactose intolerance lacks the enzyme lactase in their small intestine. What is the primary function of lactase?

    • A) Breaking down proteins
    • B) Breaking down lactose into glucose and galactose
    • C) Breaking down starch into maltose
    • D) Breaking down fats into fatty acids

    Answer: Breaking down lactose into glucose and galactose

    Explanation: Lactase splits lactose into glucose and galactose; other enzymes handle proteins, starch, and fats.