NEET Biology: Digestion Practice Questions

14 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    Bile is produced by which organ and stored in the gallbladder?
    Easy
  2. Q2.
    The chemical formula for the main component of gastric juice that provides an acidic environment is HCl. What is the primary function of this acid in the stomac
    Easy
  3. Q3.
    Which enzyme is responsible for the digestion of starch in the human mouth?
    Easy
  4. Q4.
    Which organ in the human body is the primary site for the absorption of digested food?
    Easy
  5. Q5.
    Which of the following is the end product of protein digestion?
    Easy
  6. Q6.
    The pH of the stomach is highly acidic due to the secretion of hydrochloric acid. What is the primary physiological role of this acidity in digestion?
    Medium
  7. Q7.
    During the digestion of fats, bile salts play a crucial role. What is the primary function of bile salts in this process?
    Medium
  8. Q8.
    The chemical digestion of starch in the human body begins in the mouth and is completed in the small intestine. Which enzyme is primarily responsible for the fi
    Medium
  9. Q9.
    Which of the following enzymes is responsible for the activation of trypsinogen into trypsin in the small intestine?
    Medium
  10. Q10.
    A patient presents with a deficiency in the activation of pancreatic zymogens. If the enzyme responsible for the initial activation step is absent, which of the
    Hard
  11. Q11.
    Which of the following best describes the mechanism of lipid absorption in the small intestine?
    Hard
  12. Q12.
    During the digestion of proteins, the final products absorbed by the intestinal epithelial cells are primarily in which form?
    Hard
  13. Q13.
    In the context of carbohydrate digestion, which enzyme is responsible for the hydrolysis of alpha-1,6-glycosidic bonds in branched polysaccharides?
    Hard
  14. Q14.
    The secretion of gastric juice is regulated by various hormones and neural signals. Which of the following correctly identifies the role of gastrin?
    Hard

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