This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 16 Digestion And Absorption – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 16 Digestion And Absorption Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This is the enzyme that breaks down the sugar lactose in your small intestine. A) Pepsin. B) HCl. C) Bicarbonate. D) Lactase. Show Answer Correct Answer: D) Lactase. 2. Enzymes are catalysts. What is a catalyst A) Speeds up a chemical reaction. B) Slows down a chemical reaction. C) Has no effect on a chemical reaction. D) It slows dow and speeds up a chemical reaction. Show Answer Correct Answer: A) Speeds up a chemical reaction. 3. Bile juice contain A) Bile salts. B) Bilirubin. C) Biliverdin. D) All of these. Show Answer Correct Answer: D) All of these. 4. Wharton's duct is associated with A) Sublingual salivary duct. B) Parotid salivary gland. C) Submaxillary salivary gland. D) Brunner's glands. Show Answer Correct Answer: C) Submaxillary salivary gland. 5. Why does a piece of bread taste sweet when it is chewed? A) The sugar contents are drawn out. B) Saliva converts starch into maltose. C) It does not taste sweet. D) The taste buds are stimulated by chewing. Show Answer Correct Answer: B) Saliva converts starch into maltose. 6. What are absorbed by co-transport? A) Monosaccharides only. B) Fatty acids and glycerol. C) Monosaccharides and amino acids. D) Monoglyerides. Show Answer Correct Answer: C) Monosaccharides and amino acids. 7. Monophyodont teeth are- A) Third Molar. B) Premolars. C) Incisors. D) Both 1 and 2. Show Answer Correct Answer: D) Both 1 and 2. 8. Trypsin act on Arginine residue of ..... A) Pepsin. B) Chymotrypsin. C) Enterokinase. D) Carboxypeptidase. Show Answer Correct Answer: B) Chymotrypsin. 9. Sphincter of oddi is present at: A) Ileo-caecal junction. B) Junction of hepato-pancreatic duct and duodenum. C) Gastro-oesophageal junction. D) Junction of jejunum and duodenum. Show Answer Correct Answer: B) Junction of hepato-pancreatic duct and duodenum. 10. The common passage for food and air is- A) Gullet. B) Glottis. C) Larynx. D) Pharynx. Show Answer Correct Answer: D) Pharynx. 11. Where does the digestion of polypeptides start in humans? A) Mouth. B) Esophagus. C) Stomach. D) Small intestine. Show Answer Correct Answer: C) Stomach. 12. Why does amylase lose activity once it reaches the stomach? A) Acidic nature of stomach. B) Due to the presence of digestive juices. C) Amylase is only active in salivary gland. D) None of the above. Show Answer Correct Answer: A) Acidic nature of stomach. 13. Which of the following statement incorrect? A) Mucosa epithelium has goblet cells which secrete mucus for lubrication. B) Mucosa forms gastric glands in the stomach and crypts in between the bases of villi. C) Cells lining in villi has brush border or microvilli. D) All the 4 basic layers in the wall of gut never show modification in different parts of the alimentary canal. Show Answer Correct Answer: D) All the 4 basic layers in the wall of gut never show modification in different parts of the alimentary canal. 14. Match column I with column II and select the correct option:Column I Column IIa. Hepatic lobule i. Base of villib. Crypts of lieberkuhn ii. Glissons capsulec. Sphincter of oddi iii. Gall bladderd. Cystic duct iv. Hepato pancreatic duct A) A-ii, b-i, c-iv, d-iii. B) A-i, b-ii, c-iv, d-iii. C) A-i, b-ii, c-iii, d-iv. D) A-iv, b-iii, c-ii, d-i. Show Answer Correct Answer: A) A-ii, b-i, c-iv, d-iii. 15. Which of the following are proteolytic enzymes? A) A) Ptyalin, Trypsin, Pepsin. B) (b) Lipase, Erepsin, Trypsin. C) (c) Erepsin, Trypsin, Pepsin. D) (d) Pepsin, Nuclease, Nucleotidase. Show Answer Correct Answer: C) (c) Erepsin, Trypsin, Pepsin. 16. What is the absorption rate of L-amino acids compared to D-isomers? A) L-aa more rapidly. B) D-isomers more rapidly. C) Equal rate. D) Not specified. Show Answer Correct Answer: A) L-aa more rapidly. 17. One of the digestive enzymes that is found in the stomach, it begins the breakdown of proteins? A) Amylase. B) Pepsin. C) Lipase. D) Rennin. Show Answer Correct Answer: B) Pepsin. 18. Which monosaccharide is the disaccharide maltose then broken down into? A) Galactose + Glucose. B) Fructose + Glucose. C) Sucrose + Glucose. D) Glucose + Glucose. Show Answer Correct Answer: D) Glucose + Glucose. 19. Mucosa of stomach has gastric glands. Which of the following is not correct? A) Mucus cells secrete mucus. B) Chief cells secrete Pepsinogen. C) Oxyntic cells secrete HCl. D) Pepsin is a pro-enzyme of Pepsinogen. Show Answer Correct Answer: D) Pepsin is a pro-enzyme of Pepsinogen. 20. In the alimentary canal, most water is absorbed in the A) Oesophagus. B) Stomach. C) Small intestine. D) Colon. Show Answer Correct Answer: C) Small intestine. 21. True or FalseFiber helps bulk up the stool and pulls in water A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. Where are the disaccharidase enzymes found? A) Microvilli. B) Pancreas. C) Lumen of small intestine. D) Mouth. Show Answer Correct Answer: A) Microvilli. 23. One of the constituents of pancreatic juice that is poured into the duodenum in humans is A) Trypsin. B) Trypsin. C) Trypsinogen. D) Enterokinase. Show Answer Correct Answer: C) Trypsinogen. 24. ..... are fingerlike projections in the small intestine that grab nutrients. A) Cilia. B) Folds. C) Protons. D) Villi. Show Answer Correct Answer: D) Villi. 25. Which of the following is true of the circular muscles in the small intestine? A) They contract at the food to push it forward. B) They contract behind the food to push it forward. C) They contract at the food to prevent it going backwards. D) They contract behind the food to prevent it from going backwards. Show Answer Correct Answer: D) They contract behind the food to prevent it from going backwards. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 16 Digestion And Absorption Quiz 1Class 11 Biology Chapter 16 Digestion And Absorption Quiz 2Class 11 Biology Chapter 16 Digestion And Absorption Quiz 3Class 11 Biology Chapter 16 Digestion And Absorption Quiz 4Class 11 Biology Chapter 16 Digestion And Absorption Quiz 5Class 11 Biology Chapter 16 Digestion And Absorption Quiz 6Class 11 Biology Chapter 16 Digestion And Absorption Quiz 7Class 11 Biology Chapter 16 Digestion And Absorption Quiz 8Class 11 Biology Chapter 16 Digestion And Absorption Quiz 9Class 11 Biology Chapter 16 Digestion And Absorption Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books