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DIGESTION & ABSORPTION, , 1,______ cells of “Crypts of Lieberkuhn”™ secrete antibacterial lysozyme”, (A). Argentaffin cells (B). Zymogen cells (C). Kupffer cells (D). Paneth cells, , 2. A buby boy aged two yeurs is admitted to playschou! and passes through a dental check-up. When did dentists, observe that the boy had only twenty teeth, which teeth were absent?, A. Incisors: B. Premolars C. Molans D. Canines, , 3. The production of pancreatic juice and bicarbonate is stimulated by which hormone?, A. Insulin and glucagon B. Cholecystokinin and secretin, C. Gastrin and insulin D_ Angiotensin and epinephrine, , 4. The primary dentition in humans is different from the permanent dentition in not having one of the following types, of teeth mentioned below., A. Premolurs B. Molars C. Canines D. Incisors, , 5. In the digestion of the human milk primury spet is curried out by,, A. Pepsin B. Trypsin C. Rennin D. Lipase, , 6, A healthy person consumes the following thing in his diet — Five-gram raw sugar, Four-gram albumin, Ten-gram, , pure buffalo ghee adulterated with two-gram vegetable ghee (hydrogenated vegetable oil), and five-gram lignin., How many calories is he likely to get?, A 144 B12 C. 164 D. 126, , 7. Normally in the human body, where do certain symbiotic microorganisms occur?, A. Duodenum 8B. Tongue surface and oral lining C. Rectum and vermiform appendix D. Caecum, , 8. One of the constituents of pancreatic juice that is poured into the duodenum in humans is:, A. Trypsin B. Chymotrypsin C. Trypsinogen D. Enterokinase, , 9. Two friends are eating together at a dining ble, and one of them suddenly starts to cough while swallowing some, food. The main reason behind the coughing is due to the improper movement of the;, , A_Neck B. Tongue C. Diaphragm D. Epiglouis, , 10. If for some reason our goblet cells ure non-functional it will adversely affect the:, A. Maturation of sperms. B, Secretion of sebum from sebaceous glands., , C. Production of somatostatin. D, Smooth movement of food down the intestine., , 11, Dark purplish gland lying on the left side of abdomen is called :, (a) liver (b) spleen (c) gall bladder (d) appendix, , 12. Which of the following are water soluble vitamins?, (a) B,C (b) A, D, K (c) A, D, E, K (d) K, B, ALE, , 13. Jaundice is a disorder of:, (a) Excretory system (b) Skin and eyes (c) Digestive system (d) Circulatory system, , 14, Which one of the following pairs of food components in humans reaches the stomach totally undigested ?
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(a) Starch and cellulose (b) Protein and starch (c) Starch and fat (d) Fat and cellulose, , 15, Which of following teeth are lophodont?, (a) Incisor and cunine (b) Premolar and molar (c) Canine and premolur (d) Premolar and incisor, , 16, Oxyntic cells are located in:, (a) Islets of Langerhans (b) Gastric epithelium and secrete pepsin (c) Kidneys and secrete renin (d) Gastric epithelium, and secrete HC], , 17. Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:, (a) vitamin A toxicity (b) kidney stones (c) hypercholesterolemia (d) urine laden with ketone bodies, , 18, Which one of the following is a matching pair of a substrate and its particular digestive enzyme?, (a) Starch — maltuse (b) Lactose — rennin (c) Maltose — steapsin (d) Casein — chymotrypsin, , 19. Which one of the following is a matching pair of a vitamin und the deficiency disease related with it ?, (a) Riboflavin — beri beri (b) Thiamine — xerophthalmia, , (c) Niacin — pellagra (d) Calciferol — scurvy, , 20, Which one of the following pairs of the cells with their secretion is correctly matched?, , (a) Oxyntic cells - A secretion with pH between 2.0 and 3.0., , (b) Alpha cells of Islets of Langerhans -Secretion that decreases blood sugur level,, , (c) Kupffer cells - A digestive enzyme that hydrolysis nucleic acids., (d) Sehaceous glands - A digestive enzyme that hydrolysisbnucteic acids, , 21. "Kwashiorkar’ and Beri-Beri' are:, (a) communicable diseases (b) infectious diseases (c) deficiency diseases (d) None of the above, , 22. First milk produced after child birth is called, (a) seburn (b) cerumen (c) true milk (d) colostrum, , 23. Cirrhosis uf liver is caused by the chronic intake of, (a) Opium (b) Alcohol (c) Tobacco (Chewing) (d) Cocaine, , 24, The sphincter of Oddi is present between;, (a) Oesophagus and cardiac stomach (b) Pyloric stomach and duodenum, (c) Hepatic duct and cystic duct (d) Hepatopancreatic duct and duodenum, , 25. The structure which prevents the entry of food into the windpipe is:, (a) Gullet (b) Glottis (c) Tonsil (d) Epiglottis, , 26. Layer of cells thut secrete enamel of tooth is:, (a) Osteoblast (b) Ameloblast (c) Odontoblast (d) Dentoblast, , 27. Cow's milk ts slightly yellawish in colour duc to the presence of, (a) Carotene (b) Riboflavin (c) Xunthophyll (d) Xanthophyll wand Carotene
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28. Accessory excretory organs of man are:, (a) only skin (b) only skin and liver (c) only skin and lungs (d) skin, lungs, liver and intestine, , 29. Cholecystokinin is secretion of, (a) Duodenum that causes contraction of gall bladder, , (b) Globlet cells of ileurn, stimulates secretion of succus entenicus, (c) Liver and controls secondary sex characters, , (d) Stomach that stimulates pancreas to release juice, , 30. Which of the following sets represents vestigial organs?, , (a) Vermiform appendix, body hair and patella, (b) Wisdom teeth, body hair and atlas vertebra, (c) Eur muscles, cochlea and coccyx, , (d) Vermiform appendix, ear muscles and coceyx., , 31, Which part of the alimentary canal does not secrete any enzyme?, (a) Mouth (b) Oesophagus (¢) Stomach (d) Duodenum, , 32. The protein coated, water soluble fat globules are called:, (a) Chylomicrons (b) Micelles (c) Chyle (d) Monoglycerides, , 33, Where do certuin symbiotic micro-organisms normally occur in humun body?, (a) Caecum (b) Oral lining and tongue surface, (c) Vermiform appendix and rectum (d) Duodenum, , 34. Both the crown and root of a tooth is covered by a layer of bony hard substance. It is called:, (a) enamel (b) dentine (c) bony socket (d) cementum, , 35, Which one of the following pairs of the kind of cells and their secretion is correctly matched?, (a) Oxyntic cells—a secretion with pH between 2.0 and 3.0, , (b) Alpha cells of islets of Langerhans—secretion that decreases blond sugar level, , (c) Kupffer cell—a digestive enzyme that hydrolyses nucleic ucids, , (d) Sehaceous glands—a secretion that evaporates for cooling, , 36, Which one of the following is the correct matching of the site of action on the given substate, the enzyme acting, upon it and the end product?, , (a) Small intestine : Proteins in the presence of Pepsin converted into Amino acids., , (b) Stomach : Fats in the presence of Lipase converted into Micelles., , (c) Duodenum : Triglycerides in the presence of Trypsin converted into Monoglycerides., , (d) Small intestine : Starch in the presence of alpha-Amylase converted into Disaccharide (maltose), , 37, Read the following four statements (1) - (iv) with certain mistakes in two of them., , (i) Fructose is generally absorbed by simple diffusion,, , (ii) The digestive wastes, solidified into coherent faeces in the rectum initiate and endocrinal action causing an urge, or desire for its removal, , (iii) The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its, muscular wall and is called the chyme,
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(iv) The secretions of the brush border cells of the mucosa alongwith the secretions of the goblet cells constitute the, succus entericus., , 38. Which of the following dietary deficiencies will affect the functioning of enzymes in the human body most, quickly?, , (a) ‘Too few carbohydrates (b) Shortage of fat-soluble vitarnins (c) Shortage of water-soluble vitamins (d) Insufficient, variety of fats, , 39, Pancreatic cancer is an especially dangerous disease in people because the pancreas is;, (a) the organ that produces and stores bile., , (b) the site of synthesis for all of the essential amino acids., , (c) one of the organs through which food must pass on its way to the colon,, , (d) an organ in which many different kinds of digestive enzymes are manufacture., , 40, How does a gastrovascular cavity differ from an alimentary canal? The gastrovascular cavity:, , (a) stores food but does not digest it. (b) is usually much larger., (c) hus only one opening. (d) functions in digestion but not absorption., , 41. The largest variety of digestive enzymes function in the:, (a) large intestine. (b) oral cavity, (c) stomach, (d) small intestine., , 42. Certain amino acids are essential to the diet of animals hecause:, , (a) they prevent overnourishment, , (b) they are cofactors and coenzymes that are required for normal physiological function., , (c) an animal cannot directly synthesize them through the transfer of an amino group to an appropriate carbon, skeleton,, , (d) animals need these substances in order to make the stored fats that are used during hibernation and migration., , 43, Protection of the walls of the stomach against the action of its own digestive juices:, (a) results from the presence of an anti-enzyme chemical formed by the gastric glands, , (b) results from the nervous reactions of the lining of the stomach., , (c) is controlled by a centre in the medulla of the brain,, , (d) results from the neutralizing. buffering, and u couting mucus covering its inner surfuce, , 44, Most of the chernical digestion of food in humans is completed in the:, (a) small intestine, (b) appendix, (c) ascending colon (d) stomach, , 45, Which of the following is characteristic of the large intestine?, (a) It has almost no bacterial populations. (b) It contains chyme., (c) It absorbs much of the water remaining in waste materials, (d) It is the site of most of digestion., , 46, The innermost layer of the digestive tract is the:, (a) serusa membrane. (b) mucosa membrane. (c) submucosa tnembrane. (d) lumen., , 47, The is primarily a storage chamber within the digestive system, while the reabsorbs wuter, ions,, and generates the faeces,, (a) buccal cavity; midgut (b) crop; midgut (c) stomach; hindgut (d) buccal cavity; hindgut, , 48. What does an increase in the secretion of insulin produce?, (a) a decrease in glucose metabolism (b) a decrease in glucose permeability of cells
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(c) an increase in blood sugar level (d) an increase in glucose permeability of cells, , 49, Which function of the liver results in the production of bile pigments?, (a) breakdown of haemoglobin (b) deamination of amino acids, (c) detoxification of metabolic poisons (d) release of stored vitamin A, , 50, The centre of hunger or centre which regulates the amount of food we eat or out appetite is located in —, (a) Medulla (b) Cerebrum (c) Hypothalamus (d) Alimentary canal, , 51. Fatty acid and glycerol are first taken up from alimentary canal by:, (a) Villi (b) Blood capillaries (c) Hepatic portal vein (d) Lymph vessels, , 52. Mammals may drink water and also get it from:, (a) Breakdown of glycogen into glucose (b) Secretion of saliva (c) Oxidation of glucose (d) Conversion of, oxyhaemoglobin into haemoglobin, , 53, When a piece of bread in chewed it tastes sweet because:, (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, , 54. Anxiety and eating spicy food together in an otherwise normal human, may lead to:, (a) Indigestion (b) Jaundice (c) Diarrhoea (d) Vomiting, , 55. A young infunt muy be feeding entirely on mothers milk which is white in colour but the stools which the infant, passes out is quite yellowish, What is this yellow colour due to ?, , (a) bile pigments passed through bile juice (b) undigested milk protein casein, , (c) pancreatic juice poured into duodenum (d) intestinal juice
