Complete Exam Guide Subject-wise practice platform
Digestion and Absorption

Digestive Enzymes: Amylase, Protease, Lipase Practice Questions

20 free Digestive Enzymes: Amylase, Protease, Lipase 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.

Start Practice Quiz

Questions

All Digestive Enzymes: Amylase, Protease, Lipase questions

20 questions
  1. Q1. Which enzyme initiates the digestion of carbohydrates in the oral cavity?
  2. Q2. The inactive enzyme pepsinogen is converted into active pepsin in the stomach by the action of:
  3. Q3. Which enzyme is specifically responsible for the digestion of milk proteins in infants?
  4. Q4. Which of the following enzymes is NOT a component of pancreatic juice?
  5. Q5. The activation of trypsinogen into trypsin is triggered by which enzyme?
  6. Q6. Bile juice contains no enzymes, yet it is essential for the digestion of:
  7. Q7. Which enzyme converts proteins, proteoses, and peptones into dipeptides in the small intestine?
  8. Q8. Intestinal juice (succus entericus) contains which of the following enzymes for the final stage of carbohydrate digestion?
  9. Q9. The breakdown of fats into diglycerides and monoglycerides is primarily catalyzed by:
  10. Q10. What is the final product of the action of nucleotidases and nucleosidases?
  11. Q11. Which enzyme is active only at a highly acidic pH (around 1.8)?
  12. Q12. Dipeptidases are enzymes that act on dipeptides to produce:
  13. Q13. Pancreatic amylase acts on polysaccharides to convert them into:
  14. Q14. Which of the following enzymes is responsible for the digestion of nucleic acids into nucleotides?
  15. Q15. The optimum pH for the action of enzymes in the small intestine is approximately:
  16. Q16. Sucrase, an enzyme found in the intestinal juice, acts on sucrose to yield:
  17. Q17. Which of the following statements about lactase is correct?
  18. Q18. Which of the following prevents the auto-digestion of the stomach wall by pepsin?
  19. Q19. The enzyme steapsin is another name for:
  20. Q20. Which of these is the correct end-product of protein digestion?