Digestion and Absorption

 

Digestion and Absorption

1. How pepsin is differing from trypsin?

a. It digests protein in acidic medium

b. It digests protein in alkaline medium

c. It digests carbohydrate in acidic medium

d. It digests carbohydrate in alkaline medium

 

2. Human intestine large because…..

a. Bacteria in the food moves slowly

b. Substances of food digest slowly

c. It provide more space for the absorption of digested food

d. It provide more space for the storage of food

 

3. How the epidermal cells in the stomach of vertebrate animal is protect stomach against HCl ?

a. HCl is dilute

b. Epidermal cells defense the function of HCl

c. HCL is neutralized in stomach

d. Epidermal cells covered with secretion of mucous

 

4. By what the major part of mammalian teeth is made up ?

a. Root

b. Pulp

c. Dentin

d. Enamel

 

5. Enterokinase takes part in the conversion of what ?

a. Pepsinogen into pepsin

b. Trypsinogen into trypsin

c. Protein into polypetide

d. Caseinogen into casein

 

6. Secretin stimulates production of

a. Saliva

b. Gastric juice

c. Bile

d. Pencreatic juice

 

7. Pepsin acts in

a. Basic medium

b.Acidic meduim

c. Neutral meduim

d. All type of medium

 

8. Enzyme trypsin is secreted by

a. Duodenum

b. Liver

c. Pancreas

d. Stomach

 

9. The number of teeth that grow twice in the human life is

a. 4

b. 12

c. 20

d. 28

 

10. The number of teeth that grow once in the human life is

a. 4

b. 12

c. 20

d. 28

 

11. Cholesterol is synthesised in

a. Brunner’s glands

b. Liver

c. Spleen

d. Pancreas

 

12. Largest gland in human body is

a. Liver

b. Pancreas

c. Pituitary

d. Thyroid

 

13. Muscular contraction of alimentary canal are

a. Circulation

b. Deglutition

c. Churning

d. Peristalsis

 

14. Fatty acids and glycerol are first absorbed by

a. Lymph vessels

b. Villi

c. Blood capillaries

d. Hepatic portal vein

 

15. Trypsin changes

a. Proteins into peptones

b. Fats into fatty acids

c. Starch and glycogen into maltose

d. Maltose into its components

16. Secretin hormone is produced by

a. Stomach

b. Liver

c. Intestine

d.Pancreas

 

17. Narrow distal part of stomach is

a. Cardiac

b. Pharynx

c. Duodenum

d. Pylorus

 

18. pH suitable for ptyalin actions is

a. 6 – 8

b. 7 – 8

c. 3 – 2

d. 9 – 3

 

19. What will happen if bile duct gets choked ?

a. Faeces become dry

b. Acidic chyme will not be neutralised

c. There will be little digestion in intestine

d. Little absorption of fat will occur

 

20. Digestion of both starch and protein is carried out by

a. Gastric juice

b. Gastric lipase

c. Pancreatic juice

d. Ptyalin

 

21. What is common among amylase, renin and trypsin ?

a. All proteins

b. Proteolytic enzymes

c. Produced in stomach

d. Act at pH lower then 7

 

22. Enterokinase is

a. Pancreatic hormone

b. Intestine hormone

c. Pancreatic enzyme

d. Component of Intestinal juice

 

23. Which enzyme initiates protein digestion ?

a. Pepsin

b. Trypsin

c. Aminopeptidase

d. Carboxypeptidase

 

24. Enzyme which does not directly act upon food substrate is

a. Trypsin

b. Lipase

c. Enterokinase

d. Amylopsin

 

25. Pepsin is secreted by

a. Peptic cells

b. Zymogen cells of stomach

c. Zymogen cells of duodenum

d. Pancreas

 

26. Pepsinogen is activated by

a. Chymotrypsin

b. Trypsin

c. HCl

d. Pepsin

 

27. Contraction of gall bladder is induced by

a. Gastrin

b. Cholecystokinin

c. Secretin

d. Enterogastrone

 

28. Hormone that stimulates stomach to secrete gastric juice is

a. Renin

b. Enterokinase

c. Enterogastrone

d. Gastrin

 

29. Water is largely absorbed in

a. Stomach

b. Oesophagus

c. Small intestine

d. Colon

 

30. HCl is secreted by

a. Zymogen cells

b. Kupffer’s cells

c. Oxyntic cells

d. Mucous cells

 

31. Jundice is a disease of

a. Kidney

b. Liver

c. Pancreas

d. Duodenum

 

32. Which is different ?

a. Gastrin

b. Secretin

c. Ptyalin

d. Glucagon

 

33. Gastrin is

a. Hormone

b. Enzyme

c. Nutrient

d. Digestive secretion

 

34. Saliva contains enzyme

a. Enterokinase

b. Ptyalin/ Amylase

c. Chymotrypsin

d. Lipase

 

35. In human being cellulose is digested by

a. Enzyme

b. Symbiotic bacteria

c. Symbiotic protozoans

d. None of the above

 

36. Enzyme lactase occurs in

a. Saliva

b. Pancreatic juice

c. Intestinal juice

d. Stomach

 

37. Protein / enzyme is absent in

a. Saliva

b. Bile

c. Pancreatic juice

d.Intestinal juice

 

38. Dental formula shows

a. Structure of teeth

b. Monophyodont or diphyodont condition

c. Number and type of teeth in both jaws

d. Number and type of teeth in one half of both jaws

 

39. pH of gastric juice / stomach is

a. 1.5 -3.0

b. 5.0 – 6.8

c. 7.0 – 9.0

d. 6.0 -8.0

 

40. In case of taking food rich in lime juice, the action of ptylin on starch is

a. Enhanced

b. Reduced

c. Unaffected

d. Stopped

 

41. Bile salts take part in

a. Digestion of carbohydrates

b. Brokedown of proteins

c. Emulsification of fat

d. Absorption of glycerol

 

42. Digestive juice contains catalytic agents called

a. Vitamins

b. Hormones

c. Enzymes

d. Nitrates

 

43. Which is not the function of liver

a. Production of insulin

b. Detoxification

c. Storage of glycogen

d. Production of bile

 

44. Fat absorbed from gut is transported in blood

a. Micelles

b. Liposomes

c. Chemomicrons

d. Chlymicrons

 

45. In small intestine, active absorption occurs in case of

a. Glucose

b. Amino acids

c. Na+

d. All the above

 

46. Which one is not matched

a. Pepsin – stomach

b. Renin – liver

c. Trypsin – intestine

d. Ptyalin – mouth

 

47. What is cholecystokinin

a. Bile pigment

b. Gastro-intestinal hormone

c. Enzyme

d. Lipid

 

48. Secretion of gastric juice is controlled by

a. Enterogesterone

b. Cholecystokinin

c. Gastrin

d. Pepsin

 

49. Which one is wisdom teeth

a. Third molar, four in number

b. Third molar, two in number

c. Second molar, four in number

d. Second molar, two in number

 

50. In humans, digestion is

a. Intercellular

b. Intracellular

c. Extracellular

d. Both A and B

 

51. Gall bladder takes part in

a. Secretion of bile

b. Storage of bile

c. Formation of bile salts

d. Formation of enzymes

 

52. Rennin acts on milk protein and changes

a. Caesinogen into caesin

b. Caesin into paracaesin

c. Caesinogen into paracaesin

d. Paracaesin into Caesinogen

 

53. Glucose is stored in liver as

a. Starch

b. Glycogen

c. Cellulose

d. Sucrose

 

54. Absorption of glycerol, fatty acids and monoglycerides takes place by

a. Lymph vessels within villi

b. Walls of stomach

c. Colon

d. Capillaries within villi

 

55. Which ones are bile salts

a. Haemoglobin and biliverdine

b. Bilirubin and biliverdine

c. Bilirubin and Haemoglobin

d. Sodium glycolate and taurocholate

 

56. Ptyalin is inactivated by a component of gastric juice called

a. Pepsin

b. HCl

c. Rennin

d. Mucus

 

57. Epithelial cells involved in absorption of digested food have on their free

surface.

a. Zymogen granules

b. Pinocytic vesicles

c. Phagocytic vesicles

d. Microvilli

 

58. First step in digestion of fat is

a. Emulsification

b. Enzyme action

c. Absorption by lacteals

d. Storage in adipose tissue

 

59. DNA-ase and RNA-ase are enzymes produced by

a. Salivary glands

b. Pancreas

c. Stomach

d. Intestine

 

60. Carboxypeptidase is secreted by

a. Pancreas

b. Stomach

c. Salivary glands

d. Intestine

 

61. Secretin and Cholecystokinin are digestive hormone, They are secreted in

a. Pyloric stomach

b. Duodenum

c. Ileum

d. Oesophagus

 

62. Crown of teeth is covered by

a. Dentin

b. Enamel

c. A and B both

d. None of these

 

63. Both the crown and root of a theeth is covered by a layer of bony hard sub

stance called

a. Enamel

b. Dentin

c. Bony socket

d. Cementum

 

64. Lysozymes are found in

a. Saliva

b. Tears

c. A and B both

d. Mitochondria

 

65. Which of the following is not present in pancreatic juice

a. Trypsinogen

b. Chymotrypsin

c. Parasitic

d. lipase

 

66. Which of the following statement is not correct

a. Bruner’s glands are present in the submucosa of stomach and secrete pepsinogen

b. Goblet cells are present in the mucosa of intestine and secrete mucus.

c. Oxyntic cells are present in the mucosa of stomach and secrete Hcl.

d. Acini are present in the pancreas and secrete carboxypeptidse.

 

67. Which hormones stimulate the production of pancreatic juice and bicarbonates ?

a. Cholycystokinin and secretin

b. Insulin and glucogon

c. Angiotensin and epinephrine

d. Gastrin and Insuline

 

68. In the stomach, gastric acid is secreted by the

a. Gastrin secreting cells

b. parietal cells

c. peptic cells

d. acidic cells

 

69. The enzymes that is not present is succus entericus is

a. Lipase

b. maltase

c. nucleases

d. nucleosidase

 

70. Which of the following are not polymerase?

a. proteins

b. Polysaccharides

c. Lipids

d. Nucleic acids.

 

71. A baby aged two years is admitted to play school and passes through a

dental check-up . The dentist observed that the boy had twenty teeth . Which

teeth were absent

a. Canines

b. Pre- Molars

c. Molars

d. Incisors.

 

72. Which cells of Crypts of Lieberkuhn’ secrete antibacterial lysozyme ?

a. paneth cells

b. Zymase cells

c. Kupffer cells.

d. Argentaffin cells

 

73. The hepatic portal veins drains blood to liver from

a. Stomach

b. Kidneys

c. Intestine

d. Heart.

 

74. Which of the following options best represents the enzyme composition

of pancreatic juice?

a. 1.Amylase, pepsin, trypsinogen, maltase

b. Peptidase, Amylase, pepsine , renine

c. Lipase, amylase, trypsinogen, procarboxypeptidase

d. Amylase, peptidase, trypsinogen, rennin.

 

75. Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements.

a. Vitamin A derivatives are formed from carotene.

b. The photo pigments are embedded in the membrane discs of the inner segments.

c. Retinal is a derivative of vitamin A

d. Retinal is light absorbing part of all the visual photopigments.

OPTION

a. a, c and d

b. a and c.

c. b, c and d

d. a and b