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Digestion and Absorption

Human Digestive System Practice Questions

20 free Human Digestive System practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Human Digestive System questions

20 questions
  1. Q1. Which of the following terms describes the human dentition based on the fact that teeth are embedded in sockets of the jaw bone?
  2. Q2. The hard chewing surface of the teeth, which helps in the mastication of food, is made up of:
  3. Q3. What is the dental formula of an adult human?
  4. Q4. Which structure prevents the entry of food into the glottis during swallowing?
  5. Q5. The stomach is anatomically divided into four main parts. Which part opens into the first part of the small intestine?
  6. Q6. Which of the following is the correct sequence of the three parts of the small intestine?
  7. Q7. The opening of the stomach into the esophagus is regulated by which muscular sphincter?
  8. Q8. Which layer of the alimentary canal wall forms irregular folds called rugae in the stomach?
  9. Q9. The 'Crypts of Lieberkuhn' are found in which layer of the intestinal wall?
  10. Q10. Which of the following is the largest gland of the human body?
  11. Q11. The hepatic lobules are covered by a thin connective tissue sheath called:
  12. Q12. The duct of the gallbladder along with the hepatic duct from the liver forms the:
  13. Q13. Which sphincter regulates the opening of the common hepatopancreatic duct into the duodenum?
  14. Q14. Brunner's glands, which help in neutralizing gastric acid, are located in the:
  15. Q15. The structural and functional units of the liver are called:
  16. Q16. Which part of the large intestine is a blind sac and hosts some symbiotic micro-organisms?
  17. Q17. The vermiform appendix, a vestigial organ, arises from which part of the alimentary canal?
  18. Q18. Which layer of the alimentary canal contains nerves, blood vessels, and lymph vessels?
  19. Q19. The pancreas is a compound gland (heterocrine). The exocrine portion secretes:
  20. Q20. Which of the following is NOT a salivary gland in humans?