Title 16. DIGESTION AND ABSORPTION.pdf ✅

16. DIGESTION AND ABSORPTION 1. In mammals the lower jaw is made up of (a) Dentery (b) Maxilla (c) Premaxilla (d) Palatine 2. Dental formula of rabbit is (a) (b) (c) (d) (e) 3. Which one has a developed canine (a) Polar bear (b) Walrus (c) Male elephant (d) Rhinoceros 4. The hardest substance of vertebrate body is (a) Keratin (b) Enamel (c) Dentine (d) Chondrin 5. On the tongue of rabbit which type of papillae are present but absent in human (a) Circumvallate (b) Circumvallate and foliate (c) Foliate (d) Fungiform 6. Thermo-regulation in dogs takes place by (a) Skin (b) Sweat glands (c) Tongue (d) Deposited fat 7. Monophyodont condition is found in (a) Sloths (b) Toothed whales (c) Sirenians (d) All the above 8. Teeth are (a) Living structure (b) Dead structure (c) Partly dead and partly living structure (d) Exact nature is not known 9. Cells secreting dentine are called (a) Osteoblasts (b) Calcoblasts (c) Chondriocytes (d) Odontoblasts 10. Bulk of the tooth in mammals is made up of (a) Dentine (b) Enamel (c) Pulp cavity (d) Root 11. A pair of small lymphatic tissue present at the sides of root tongue is called as (a) Thyroid (b) Tonsils (c) Epiglottis (d) Adenoids 12. Vomerine teeth are present in (a) Man (b) Reptiles (c) Frogs (d) Rabbits 13. The function of tongue is to (a) Help in the act of swallowing 1023 1023 3023 3023 2023 1023 2304 2103 1023 2023
(b) Help in mixing saliva with the food (c) Help in speaking (d) All the above 14. Diastema is associated with (a) Presence of certain teeth (b ) Absence of certain teeth (c) Presence of tongue (d) Absence of tongue 15. Taste buds for bitter taste are found on tongue at (a) Tip (b) On basal surface (c) Posterior part (d) Lateral sides 16. In man the length of alimentary canal is about (a) (b) (c) (d) 17. In rabbit peristalsis is (a) The act of swallowing (b) An involuntary muscular contraction and relaxation (c) Mode of nutrition (d) The secretion of digestive juices 18. The length of the alimentary canal is more in herbivorous animals than the carnivorous because (a) Herbivorous diet contains more fat to digest (b) Herbivorous diet contains more proteins to digest (c) Herbivorous diet contains more carbohydrates particularly cellulose which takes more time to digest (d) None of these 19. In mammals, the digestion of starch starts from (a) Mouth (b) Stomach (c) Oesophagus (d) Duodenum 20. If the dental formula of Rabbit is 2033/1023. What does it show (a) Total number of teeth in Rabbit is 15 (b) Number of total incisors in Rabbit is 3 (c) Diastema is present between incisors & premolars (d) In the formula 2033 is for adult and 1023 is for young ones 21. How many kinds of cells are found in islet of Langerhans (a) 1 (b) 2 (c) 3 (d) 4 22. A good source of lipase is (a) Saliva (b) Pancreatic juice (c) Bile (d) Gastric juice 23. Fat digestion is facilatated by (a) Bile juice (b) Pancreatic juice (c) Gastric juice (d) None of these 24. Which of the following clotting factor is not formed by liver (a) I (b) II (c) IV (d) VIII 25. Liver sinusoids are lined by (a) Parenchymal cells (b) Endothelial cells (c) Kupffer cells (d) Goblet cells 26. Parotid salivary gland are present (a) Below the tongue (b) Below the ear 8 feet 16 feet 24 feet 32 feet
(c) Below the eye orbit (d) In the angle between two jaws 27. Pissiform cells loaded with zymogen granules can be seen in (a) Liver (b) Pancreas (c) Ovary (d) Kidney 28. Pancreatic juice contains (a) Trypsin, lipase and maltase (b) Pepsin, trypsin and maltase (c) Trypsin, chymotrypsin, amylase and lipase (d) Trypsin, pepsin and amylase 29. Bile is secreted by (a) Pancreas (b) Kidney (c) Heart (d) Liver 30. Ptyalin is (a) Strongly acidic (b) Slightly acidic (c) Slightly neutral (d) Strongly alkaline 31. Liver in our body stores (a) Vitamin A (b) Vitamin D (c) Vitamin (d) All of these 32. Argentaffin cells are found in (a) Pancreas (b) Internal ear (c) Gastric glands (d) Liver 33. Which of the following enzyme is not secreted by pancreas (a) Pepsin (b) Trypsin (c) Carboxy peptidase (d) Ribonuclease 34. Prussic acid formed during metabolism is rendered harmless by (a) Pancreas (b) Stomach (c) Liver (d) All the above 35. In pancreas, pancreatic juice and hormones are secreted by (a) Same cells (b) Different cells (c) Same cells at different times (d) None of these 36. The of amylase present in saliva is (a) 6 (b) 6.8 (c) 7.2 (d) 8 37. Gall bladder is stimulated by (a) Secretin (b) Cholecystokinin (c) Enterogastrone (d) Enterokinase 38. The of succus entericus is (a) 7.8 (b) 6.6 (c) 5.6 (d) 2.0 39. Saccus entericus is the name given to (a) Junction between ileum and large intestine (b) Intestinal juice (c) Swelling in the gut (d) Appendix 40. Liver of rabbit is made up of B12 pHpH
(a) 4 lobes (b) 6 lobes (c) 5 lobes (d) 7 lobes 41. Trypsinogen is an inactive enzyme secreted by the pancreas. It is activated by (a) Pepsin of stomach (b) Chymotrypsin (c) Bile (d) Enterokinase 42. Pepsin is secreted in the form of pepsinogen. It is activated by the ......... in the stomach (a) Gastrin (b) Amylopsin (c) (d) Rennin 43. In vertebrates, lacteals are found in (a) Ileum (b) Ischium (c) Oesophagus (d) Ear 44. If pancreas is removed, the compound which remain undigested is (a) Carbohydrates (b) Fats (c) Proteins (d) All of these 45. Chylomicrons are (a) Undigested proteins (b) Undigested carbohydrates (c) Fat droplets coated with glycerol and protein (d) Fat droplets coated with phospholipids 46. The process by which digested food of the alimentary canal passes through its mucous membrane into circulatory system is called as (a) Absorption (b) Assimilation (c) Hydrolysis (d) Defecation 47. Trypsin is a digestive enzyme which occurs in mammals and digests (a) Starch in buccal cavity in an alkaline medium (b) Protein in stomach in an acidic medium (c) Protein in duodenum in an acidic medium (d) Protein in duodenum in an alkaline medium 48. Part of alimentary canal meant for reabsorption of H2O is (a) Small intestine (b) Large intestine (c) Rectum (d) None of these 49. The first phase in the breakdown of glucose in animal cell is (a) Glycolysis (b) Electron transport system (c) Fermentation (d) Krebs cycle 50. Digestion of both starch and protein is done by (a) Gastric juice (b) Gastric lipase (c) Pancreatic juice (d) Ptylin 51. The end product of carbohydrate metabolism is (a) and (b) and (c) and (d) 52. Which one of the following statements about glycogen is correct (a) It is a disaccharide stored in liver which can react with ammonia to form proteins (b) It is synthesised in the liver and takes part in the formation of bile and lipase, besides being a source of energy HCl CO2 H2O NH 3 CO2 NH 3 H2O CO2