This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 16 Digestion And Absorption – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 16 Digestion And Absorption Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The epiglottis covers the ..... during swallowing to prevent choking. A) Ear. B) Esophagus. C) Trachea. D) Stomach. Show Answer Correct Answer: C) Trachea. 2. The process of breaking down food into nutrient rich molecules. A) Villi. B) Peristalsis. C) Digestion. D) Absorption. Show Answer Correct Answer: C) Digestion. 3. In which of the following does ptyalin of saliva act? A) Strongly acidic (3.2). B) Neutral (7.0). C) Slightly alkaline (7.8) medium. D) Slightly acidic (6.8). Show Answer Correct Answer: D) Slightly acidic (6.8). 4. TRUE or FALSE:Bile is an example of chemical digestion A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 5. Enterokinase/enteropeptidase takes part in the conversion of A) Caseinogen to casein. B) Trypsinogen to trypsin. C) Pepsinogen to pepsin. D) Protein into polypeptides. Show Answer Correct Answer: B) Trypsinogen to trypsin. 6. In the epithelial cells, glucose molecules are absorbed into the bloodstream by: A) Active transport with potassium ions via a co-transporter protein. B) Active transport with sodium ions via a co-transporter protein. C) Facilitated diffusion with sodium ions via a co-transporter protein. D) Facilitated diffusion through a different transporter protein. Show Answer Correct Answer: C) Facilitated diffusion with sodium ions via a co-transporter protein. 7. What do goblet cells release? A) Bile in liver. B) Proenzyme pepsinogen. C) Hydrochloric acid. D) Mucus. Show Answer Correct Answer: D) Mucus. 8. Where do exopeptidases break peptide bonds? A) End of a polypeptide. B) Middle of a polypeptide. C) All the above. D) None of the above. Show Answer Correct Answer: A) End of a polypeptide. 9. Where is the pancreatic juice released? A) Small intestine. B) Stomach. C) Large intestine. D) Mouth. Show Answer Correct Answer: A) Small intestine. 10. Where do we find a semi permeable membrane in the digestive system? A) Stomach. B) Gall bladder. C) Liver. D) Small intestine. Show Answer Correct Answer: D) Small intestine. 11. Where is the bile stored? A) Liver. B) Gall bladder. C) Pancreas. D) Small intestine. Show Answer Correct Answer: B) Gall bladder. 12. What does gastric juice not contain? A) Lipase. B) Protease. C) Rennin. D) Amylase. Show Answer Correct Answer: D) Amylase. 13. Assertion (A)-Pancreatic juice is a complete digestive juice. Reason (R)-It contains Protein, Carbohydrate, fat and Nucleic acid digestive enzyme . A) A and R statement are correct and R is the correct explanation of A. B) A and R statement are correct but R is not the correct explanation of A. C) A is correct but R is false. D) Both are false. Show Answer Correct Answer: A) A and R statement are correct and R is the correct explanation of A. 14. Duct of gall bladder is known as A) Stenson duct. B) Duct of rivinus. C) Whartons duct. D) Cystic duct. Show Answer Correct Answer: D) Cystic duct. 15. What is the role of the Golgi apparatus in lipid absorption? A) It secretes digestive enzymes. B) It repackages triglycerides. C) It digests fatty acids. D) It produces bile salts. Show Answer Correct Answer: B) It repackages triglycerides. 16. Produces enzymes that break down food A) Liver. B) Pancreas. C) Gall bladder. D) Stomach. Show Answer Correct Answer: B) Pancreas. 17. What are micelles? A) Spheres that transport fatty acids and monoglycerides to epithelial cells. B) Enzymes that digest proteins. C) Products of carbohydrate digestion. D) Cells that line the stomach. Show Answer Correct Answer: A) Spheres that transport fatty acids and monoglycerides to epithelial cells. 18. Match the following-(1) Brunner's Gland (p) Stomach (2) Crypts of Leiberkuhn (q) Liver (3) largest gland (r) submucosa of duodenum (4) Gastric glands (s) mucosa of intestine A) 1. (r) 2. (s) 3. (q) 4. (p). B) 1. (s) 2. (r) 3. (q) 4. (p). C) 1. (p) 2. (q) 3. (r) 4. (s). D) 1. (r) 2. (s) 3. (p) 4. (q). Show Answer Correct Answer: A) 1. (r) 2. (s) 3. (q) 4. (p). 19. Another word for the oesophagus A) Larynx. B) Trachea. C) Gullet. D) Alimentary canal. Show Answer Correct Answer: C) Gullet. 20. Chylomicrons are needed to: A) Digest fat. B) Make triglycerides more soluble in lymph. C) Absorb proteins. D) Neutralise the pH in the small intestine. Show Answer Correct Answer: B) Make triglycerides more soluble in lymph. 21. Peptic cell release A) Chymotrypsin. B) Pro enzyme pepsinogen. C) Trypsin. D) Bile. Show Answer Correct Answer: B) Pro enzyme pepsinogen. 22. In an operation, a large part of the colon of a person was removed. As a result, the person could not A) Take in solid food. B) Produce solid faeces. C) Produce sufficient digestive enzymes. D) Absorb amino acids efficiently. Show Answer Correct Answer: B) Produce solid faeces. 23. Finger-like projections in the small intestine that absorb nutrients A) Villi. B) Absorption. C) Peristalsis. D) Digestion. Show Answer Correct Answer: A) Villi. 24. How many statements are correct?(1) Pancreas is an elongated organ located between the limbs of "C" shaped duodenum. (2) Each hepatic lobule is covered by thin connective tissue sheath called Renal capsule. (3) Salivary glands are 3 pair in number and located inside buccal cavity. A) All are correct. B) Only one statement is correct. C) Two statement are correct. D) None. Show Answer Correct Answer: B) Only one statement is correct. 25. Read the statements about Bile carefully and identify the incorrect statement A) It is secreted in the gall bladder. B) Bilirubin and Biliverdin are Bile pigments. C) Bile contain no enzyme. D) Bile helps in emulsification of fats. Show Answer Correct Answer: A) It is secreted in the gall bladder. 26. One gram of fat produces A) 9.45 k. calories of chemical energy. B) 5.0 k. calories of chemical energy. C) 7.0 k. calories of chemical energy. D) 4.1 k. calories of chemical energy. Show Answer Correct Answer: A) 9.45 k. calories of chemical energy. 27. Choose the option containing correct statement(s) only. I. Caecum, a small blind sac is a part of large intestine and host symbiotic bacteria.Il. Stomach is located in the upper right portion of the abdominal cavity. IIl. Oesophagus and Trachea opens into pharynx. IV . A cartilaginous flap called Glottis prevent the entry of food in the epiglottis during swallowing. A) Only II is correct. B) I and III are correct. C) All are correct. D) Only IV is correct. Show Answer Correct Answer: B) I and III are correct. 28. Mark the correct order of intestinal wall from outside to inside-1.Circular muscles 2. Mucosa 3. Submucosa 4. Longitudinal muscles A) 4-3-2-1. B) 3-2-4-1. C) 4-1-3-2. D) 4-1-2-3. Show Answer Correct Answer: C) 4-1-3-2. 29. Chylomicrons are concerned with:- A) Digestion of protein. B) Absorption of fats. C) Digestion of fats. D) Absorption of proteins. Show Answer Correct Answer: B) Absorption of fats. 30. Assertion (A)-Pancreas is the second largest gland after liver. Reason (R)-Pancreas is considered a mixed gland as it functions both as exocrine and endocrine. A) (a) Both A and R are true and R is the correct explanation of A. B) (b) Both A and R are true, but R is not the correct explanation of A. C) (c) A is true, but R is false. D) D) Both A and R are false. Show Answer Correct Answer: B) (b) Both A and R are true, but R is not the correct explanation of A. 31. The tube that carries bolus from mouth to stomach is the ..... A) Esophagus. B) Trachea. C) Intestine. D) None of the above. Show Answer Correct Answer: A) Esophagus. 32. Name the animal tissue, which are most abundant and widely distributed in the body of complex animals A) Epithelial. B) Muscular. C) Connective. D) Neural. Show Answer Correct Answer: C) Connective. 33. Protein digestion takes place A) In the mouth. B) In the stomach. C) In the stomach and duodenum. D) All of the above. Show Answer Correct Answer: C) In the stomach and duodenum. 34. This is the enzyme that breaks down the sugar lactose in your small intestine. A) HCl. B) Pepsin. C) Bicarbonate. D) Lactase. Show Answer Correct Answer: D) Lactase. 35. 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. 36. Bile juice contain A) Bile salts. B) Bilirubin. C) Biliverdin. D) All of these. Show Answer Correct Answer: D) All of these. 37. 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. 38. Why does a piece of bread taste sweet when it is chewed? A) It does not taste sweet. B) The sugar contents are drawn out. C) The taste buds are stimulated by chewing. D) Saliva converts starch into maltose. Show Answer Correct Answer: D) Saliva converts starch into maltose. 39. 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. 40. Monophyodont teeth are- A) Third Molar. B) Premolars. C) Incisors. D) Both 1 and 2. Show Answer Correct Answer: D) Both 1 and 2. 41. Trypsin act on Arginine residue of ..... A) Carboxypeptidase. B) Chymotrypsin. C) Enterokinase. D) Pepsin. Show Answer Correct Answer: B) Chymotrypsin. 42. 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. 43. The common passage for food and air is- A) Gullet. B) Larynx. C) Pharynx. D) Glottis. Show Answer Correct Answer: C) Pharynx. 44. Where does the digestion of polypeptides start in humans? A) Mouth. B) Esophagus. C) Stomach. D) Small intestine. Show Answer Correct Answer: C) Stomach. 45. 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. 46. 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-iii, d-iv. C) A-i, b-ii, c-iv, d-iii. D) A-iv, b-iii, c-ii, d-i. Show Answer Correct Answer: A) A-ii, b-i, c-iv, d-iii. 47. Which of the following are proteolytic enzymes? A) (c) Erepsin, Trypsin, Pepsin. B) A) Ptyalin, Trypsin, Pepsin. C) (b) Lipase, Erepsin, Trypsin. D) (d) Pepsin, Nuclease, Nucleotidase. Show Answer Correct Answer: A) (c) Erepsin, Trypsin, Pepsin. 48. What is the absorption rate of L-amino acids compared to D-isomers? A) Equal rate. B) L-aa more rapidly. C) Not specified. D) D-isomers more rapidly. Show Answer Correct Answer: B) L-aa more rapidly. 49. One of the digestive enzymes that is found in the stomach, it begins the breakdown of proteins? A) Pepsin. B) Amylase. C) Lipase. D) Rennin. Show Answer Correct Answer: A) Pepsin. 50. Which monosaccharide is the disaccharide maltose then broken down into? A) Sucrose + Glucose. B) Glucose + Glucose. C) Galactose + Glucose. D) Fructose + Glucose. Show Answer Correct Answer: B) Glucose + Glucose. 51. Mucosa of stomach has gastric glands. Which of the following is not correct? A) Oxyntic cells secrete HCl. B) Mucus cells secrete mucus. C) Pepsin is a pro-enzyme of Pepsinogen. D) Chief cells secrete Pepsinogen. Show Answer Correct Answer: C) Pepsin is a pro-enzyme of Pepsinogen. 52. 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. 53. 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. 54. Where are the disaccharidase enzymes found? A) Microvilli. B) Pancreas. C) Lumen of small intestine. D) Mouth. Show Answer Correct Answer: A) Microvilli. 55. One of the constituents of pancreatic juice that is poured into the duodenum in humans is A) Trypsin. B) Trypsinogen. C) Trypsin. D) Enterokinase. Show Answer Correct Answer: B) Trypsinogen. 56. ..... are fingerlike projections in the small intestine that grab nutrients. A) Protons. B) Folds. C) Villi. D) Cilia. Show Answer Correct Answer: C) Villi. 57. Which of the following is true of the circular muscles in the small intestine? A) They contract behind the food to push it forward. B) They contract at the food to prevent it going backwards. C) They contract behind the food to prevent it from going backwards. D) They contract at the food to push it forward. Show Answer Correct Answer: C) They contract behind the food to prevent it from going backwards. 58. Anal opening is guarded by- A) A) one voluntary sphincter. B) (b) two voluntary sphincters. C) (c) one involutary sphincter. D) (d) 2 sphincter, one is involuntary and other is involuntary. Show Answer Correct Answer: D) (d) 2 sphincter, one is involuntary and other is involuntary. 59. The three types of muscle tissue are A) Cardiac, Skeletal, Smooth. B) Cardiac, Skeletal, Cartilage. C) Nervous, Skeletal, Cardiac. D) Cardiac, Smooth, Cartilage. Show Answer Correct Answer: A) Cardiac, Skeletal, Smooth. 60. The absorption of water alcohol and simple sugars occurs in A) Gastric mucosa. B) Mucosa. C) Mucosa of ileum only. D) Oral mucosa. Show Answer Correct Answer: A) Gastric mucosa. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 5Class 11 Biology Chapter 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division QuizClass 11 Biology Chapter 11 Transport In Plants QuizClass 11 Biology Chapter 12 Mineral Nutrition Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books