Digestion and Absorption 150 MCQ



 1. Parietal cells of mucosa in stomach secretes :

(1) Mucin 

(2) Pepsin

(3) HCl 

(4) All of the above


2. Enamel of teeth is secreted by :-

(1) Ameloblast

(2) Odontoblast

(3) Osteoblast 

(4) Osteoclast


3. Dental formula of adolescent human being before 17 years :-

(1)     2122

         2122

(2)

2123

2123

(3)

2102

2102

(4)

2023

1023


4. Which cells of mucous layer of stomach secrete

pepsinogen

(1) Chief cell 

(2) Goblet cell

(3) Parietal cell

(4) Oxyntic cell


5. Innermost layer of mucosa is made up of columnar

epithelium except :-

(1) Oesophagus 

(2) Duodenum

(3) Intestine 

(4) Stomach


6. How many teeth in man grows twice in life :

(1) 32 

(2) 28

(3) 20 

(4) 12


7. In human which teeth help in cutting ?

(1) Canine 

(2) Incisor

(3) Molar 

(4) Premolar


8. Pulp cavity of teeth is lined by :

(1) Odontoblast 

(2) Chondroblast

(3) Osteoblast

(4) Amyloblast


DIGESTIVE GLANDS


9. In human being sphincter of Oddi is situated in :-

(1) Common bile duct

(2) Ampulla of vater

(3) Main pancreatic duct

(4) Common hepatic duct


10. Ptyalin is secreted by-

(1) Stomach

(2) Salivary gland

(3) Pancreas 

(4) Bile


11. Ptyalin, an enzyme work in saliva in -

(1) Alkaline medium

(2) almost neutral medium

(3) Acidic medium

(4) all media


12. In pancreas, pancreatic juice and hormone are

secreted by-

(1) Islets of langerhans

(2) Cells of Acini and Islets of langarhans resp.

(3) Istets of langeshans and cells of Acius resp.

(4) None of these.


13. C-shaped widest part of intestine

(1) Pancreas 

(2) Liver

(3) Duodenum 

(4) Thyroid


14. Which substance destroy the harmful bacteria-

(1) Cerumin

(2) Chyme

(3) HCl

(4) Secretin


15. One of the following is not a constituent of saliva :-

(1) Bicorbonate 

(2) Lysozyme

(3) Glucose 

(4) Immunoglobulin


16. What statement is wrong about bile ?

(1) Is necessary for fat digestion

(2) Is stored in the gall bladder

(3) Is important only for normal digestion of sugar

(4) None of above


17. Which of the following is a function of gall bladder:-

(1) Deamination

(2) Bile storage

(3) Synthesis of plasma protein

(4) Storage of fat soluble vitamin


18. Crypts of Leiberkuhn are found in between the villi.

They secrete :

(1) Glucagon

(2) Succus entericus

(3) Insulin

(4) None


19. Parotid salivary glands are present :

(1) Below the tongue

(2) Below the ears

(3) Below the eye orbits

(4) In the angle between two jaws



20. Sinusoids are found in

(1) Liver 

(2)  Kidney

(3) Heart 

(4) Blood


21. Specific cells found in liver are :

(1) Enterocyte cells

(2) Beta cells

(3) Hepatic cells

(4) Islets of Langerhans


22. Cells of liver which act as phagocytes are :

(1) Dieter's cells 

(2) Kupffer's cells

(3) Hensen cells 

(4) Aciner cells

PHYSIOLOGY OF DIGESTION AND OTHERS

23. Casein present in milk,which is -

(1) bacterium 

(2) sugar

(3) protein 

(4) fat

24. Amylase enzyme acts on the -

(1) Starch 

(2) Protein

(3) Fat 

(4) Cane sugar

25. Liver cells secrete-

(1) amylopsin 

(2) trypsin

(3) lipase 

(4) bile and no enzyme


26. Peristaltic movements found in different parts of

alimentary canal. In which one of these there is

least peristalsis-

(1) Stomach 

(2) Duodenum

(3) Rectum 

(4) Oesophagus

27. Milk protein is curdled into calcium paracaseinate by -

(1) Maltose (2) Rennin

(3) Trypsin (4) lactose


28. The enzyme invertase hydrolyses-

(1) Glucose into sucrose

(2) Sucrose into glucose and fructose

(3) Starch into maltose

(4) Starch into sucrose

29. Amino acids are absorbed in-

(1) Blood capillaries of villi

(2) Wall of rectum

(3) lacteals and blood capillaries of villi

(4) lacteals of villi


30. Digestion of carbohydrate is affected by-

(1) Amylopsin 

(2) Lipase

(3) Erepsin 

(4) Pepsin


31. Trypsin is secreted by-

(1) Pancreas 

(2) Stomach

(3) Liver 

(4) Ileum


32. Proteins are broken down into amino acids in-

(1) Buccal cavity 

(2) Stomach

(3) Intestine 

(4) Rectum


33. Which reserve food is consumed by man during starvation :-

(1) Fat 

(2) Protein

(3) Glucose 

(4) Vitamin


34. Ptyalin cannot work in stomach, because it becomes-

(1) Inactive due to HCl 

(2) Inactive due to renin

(3) Inactive due to pepsin 

(4) None of these


35. What is the important function of bile-

(1) For digestion by emulsification of fats

(2) Elimination of excretory products

(3) For digestion by enzymes

(4) Coordination of digestive activities


36. Some proteolytic enzymes are-

(1) Trypsin, Erepsin, Pepsin

(2) Amylase, Lipase, Zymase

(3) Ampylopsin, Steapsin, Ptyalin

(4) Urease, Dehydrogenase, Zymase


37. Succus entericus is secreted by-

(1) Gastric glands

(2) Islets of langerhans

(3) Crypts of lieberkuhn & Brunner's gland

(4) Goblet cells


38. Glycogen is stored in-

(1) Blood 

(2) Liver

(3) Lungs 

(4) Kidney


39. Chymotrypsin is-

(1) Proteolytic enzyme 

(2) Fat digestive enzyme

(3) Vitamin 

(4) Hormone

40. Emulsification of fats by bile takes place in-

(1) Duodenum 

(2) Liver

(3) Stomach 

(4) Intestine


 Absorption of digested food chiefly occurs in-

(1) Stomach 

(2) Colon

(3) Small Intestine 

(4) Large Intestine


42. The enzyme trypsinogen is secreted from-

(1) Duodenum

(2) Pancreas

(3) Liver 

(4) Stomach


43. Enzyme pepsin acts upon food at a pH of about-

(1) 3 to split proteins

(2) 2 to split carbohydrate

(3) 7 to change protein into peptones

(4) 2 to change protein in amino acids


44. Our food mainly contains-

(1) Carbohydrates 

(2) Cellulose

(3) Sucrose 

(4) Glucose


45. Which one is differ from the category of other three-

(1) Gastrin 

(2) Glucagon

(3) Secretin 

(4) Ptyalin


46. A carbohydrate splitting enzyme is secreted by -

(1) Liver

(2) Zymogen cells of gastric glands

(3) Spleen

(4) Crypts of Lieberkuhn


47. Stomach is the main site for the digestion of -

(1) Fats 

(2) Carbohydrate

(3) Protein 

(4) All of these


48. The hormone involved in the discharge of

pancreatic juice in mammal is called-

(1) Gastrin

(2) Secretin

(3) Secretin & CCK

(4) Enterogasterone


49. Function of HCl in stomach is to-

(1) Kill micro-organism of food

(2) Facilitate absorption of food

(3) Dissolve hormones secreted by gastric glands

(4) Active trypsinogen to trypsin


50. Enzyme maltase in human gut acts on food at a

pH of -

(1) More than 7to change starch into maltose.

(2) Less than 7 to change starch into maltose.

(3) More than 7 to change maltose into glucose.

(4) Less than 7 to change maltose into glucose.


51. Simple sugar of blood is-

(1) Dextrin 

(2) Lactose

(3) Sucrose 

(4) Glucose


52. During prolonged starvation, body derives nutrition

from storage of -

(1) Liver and adipose tissue

(2) Spleen

(3) Liver and lungs

(4) Subcutaneous fat and Pancreas



53. Enterokinase stimulates which of the following-

(1) Pepsinogen 

(2) Trypsin

(3) Pepsin 

(4) Trypsinogen


54. Maximum digestion of food take place in –

(1) Stomach 

(2) Jejunum

(3) Colon 

(4) Duodenum


55. Absence of which of these in bile will make fat

digestion difficult-

(1) Cholesterol 

(2) Bile salts

(3) Pigment 

(4) Acids


56. Pancreatic juice is released into-

(1) Duodenum 

(2) Ileum

(3) Stomach 

(4) Jejunum.


57. The enzyme that catalyse the changing of emulsified

oils to fatty acids and glycerol is-

(1) Pepsin 

(2) Lipase

(3) Amylase 

(4) Sucrose


58. Point out the odd one-

(1) Rennin 

(2) Secretin

(3) Calcitonin 

(4) Oxytocin


59. Pancreatic lipase acts upon-

(1) Glycogen 

(2) Triglycerides

(3) Dissacharides 

(4) Polypeptides


60. Bile is formed in-

(1) Gall bladder 

(2) Liver

(3) Spleen 

(4) Blood


61. Cholecystokinin is secretion of

(1) Duodenum that causes contraction of gall

bladder

(2) Goblet cells of ileum stimulates secretion of

succus entricus

(3) Liver and controls secondary sex characters

(4) Stomach that stimulates pancreas to release juice



Enzyme trypsinogen is changed to trypsin by

(1) Gastrin 

(2) Enterogastrone

(3) Enterokinase 

(4) Secretin


63. Castle's intrinsic factor is connected with internal

absorption of-

(1) Pyridoxine 

(2) Riboflavin

(3) Thiamine 

(4) Cobalamine


64. Maximum number of enzymes occur in-

(1) Omnivorous

(2) Herbivores

(3) Carnivores


(4) None of the above

65. Cholesterol is synthesized in-

(1) Brunner's gland 

(2) Liver

(3) Spleen 

(4) Pancreas


66. Rennin acts on-

(1) Milk changing casein into calcium paracaseinate

at 7.2 - 8.2 pH

(2) Proteins in stomach

(3) Fat in intestine

(4) Milk, changing casein into calcium paracaseinate

at 1-3 pH


67. Lacteals take part in -

(1) Digestion of milk 

(2) Absorption of fat

(3) Digestion of lactic acid 

(4) None of the above


68. Muscular contraction of alimentary canal are-

(1) Circulation 

(2) Deglutition

(3) Churning 

(4) Peristalsis


69. Fatty acids and glycerol are first absorbed by-

(1) Lymph vessels

(2) Blood

(3) Blood capillaries

(4) Hepatic portal Vein


70. During prolonged fasting-

(1) First fats are used up, followed by carbohydrate

from liver and muscles, and protein in the end

(2) First carbohydrate are used up, followed by fat

and proteins towards end

(3) First lipids, followed by proteins and

carbohydrates towards end.

(4) None of the above


71. Which of the following is absorbed in ileum-

(1) Fat 

(2) Bile salts

(3) Vit-K 

(4) Glucose


72. Which food substance is absorbed, without

digestion-

(1) Carbohydrates 

(2) Proteins

(3) Vitamins 

(4) Fats


73. Mucus is secreted by the :-

(1) Stomach 

(2) Duodenum

(3) Large intestine 

(4) All of the above


74. Water absorption is mainly occur in :-

(1) Colon 

(2) Intestine

(3) Gastrium 

(4) Appendix


75. Which of the following absorbed in proximal

intestine :-

(1) Iron 

(2) Sodium

(3) Bile salts 

(4) Vitamin B12


76. Substances which are not related with hepatic portal

circulation :-

(1) Amino acid 

(2) Fatty acid

(3) Glucose 

(4) Fructose


77. Jaundice is a disorder of :

(1) Skin and eyes 

(2) Digestive system

(3) Circulatory system 

(4) Excretory system


78. Lactose composed of :-

(1) Glucose + galactose

(2) Glucose + fructose

(3) Glucose + glucose

(4) Glucose + mannose


79. If for some reason the parietal cells of the gut

epithelium become partially non-functional, what

is likely to happen ?

(1) The pH of stomach will fall abruptly

(2) Steapsin will be more effective

(3) Proteins will not be adequately hydrolysed by

pepsin into proteoses and peptones

(4) The pancreatic enzymes and specially the trypsin

and lipase will not work efficiently


80. In stomach after physical and chemical digestion

food is called:-

(1) Chyme 

(2) Chyle

(3) Amino acid 

(4) Bolus


81. Fully digested food reaches to liver by

(1) Hepatic portal vein 

(2) Hepatic artery

(3) Hepatic vein 

(4) All the above


A person who is eating rice. His food contains

(1) Cellulose 

(2) Starch

(3) Lactose 

(4) Protein


83. In mammals, milk is digested by action of-

(1) Rennin 

(2) Amylase

(3) Intestinal bacteria 

(4) Invertase


84. Stool of a person contain whitish grey colour due

to malfunction of which type of organ:

(1) Pancreas 

(2) Spleen

(3) Kidney 

(4) Liver


85. Which of the following is a dissacharide :

(1) Glucose 

(2) Fructose

(3) Sucrose 

(4) Galactose


86. If all the peptide bonds of protein are broken, then

the remaining part is :-

(1) Amide 

(2) Oligosaccharide

(3) Polypeptide 

(4) Amino acid


87. Hydrolysis of lipid yields :-

(1) Fats

(2) Fatty acids and glycerol

(3) Mannose and glycerol

(4) Maltose and fatty acid


88. Glucose and galactose unite to form

(1) Maltose 

(2) Sucrose

(3) Isomaltose 

(4) Lactose


89. Gastric enzyme pepsin acts only in acidic medium

with in a limited pH concentration. It varies:

(1) 1.20 to 1.80

(2) 1.00 to 1.50

(3) 2.00 to 2.50

(4) 1.50 to 2.60


90. Stomach in vertebrates is the main site for digestion

of :

(1) Proteins

(2) Carbohydrates

(3) Fats

(4) Nucleic acids


91. The chief function of bile is to :

(1) Digest fat by enzymatic action

(2) Emulsify fats for digestion

(3) Eliminate waste products

(4) Regulate digestion of proteins


92. The toxic substance are detoxicated in the human

body by :

(1) Lungs (2) Kidneys

(3) Liver (4) Stomach


93. The end product of carbohydrate metabolism is :

(1) CO2 and H2O (2) NH3 and CO2

(3) NH3 and H2O (4) CO2


94. The muscular contraction in the alimentary canal

is known as :

(1) Systole (2) Diastole

(3) Peristalsis (4) Spasm


95. End products of protein hydrolysis are :

(1) Mixture of amino acids

(2) Sugars

(3) Peptides

(4) 25 amino acids


96. Ptyalin is an enzyme of

(1) Salivary juice (2)  Pancreatic juice

(3) Intestinal juice (4) None of these


97. The hormone 'secretin' stimulates secretion of

(1) Pancreatic juice

(2)  Intestinal juice

(3) Salivary juice

(4) Gastric juice


98. Which one of the following amino acids is not found

in proteins ?

(1) Arginine 

(2) Ornithine

(3) Aspartic acid 

(4) Tyrosine


99. Succus entericus is also called are:

(1) Gastric juice 

(2) Intestinal juice

(3) Bile juice 

(4) Saliva


100. Just as hydrochloric acid is for pepsinogen, so is

the :

(1) haemoglobin to oxygen

(2) enterokinase to trypsinogen

(3) bile juice to fat

(4) glucagon to glycogen


101. Where the lysozymes are found :

(1) In saliva and tears both

(2) In tears

(3) In saliva

(4) In mitochondria


102. The major site of protein breakdown to form free

amino acids, is in the

(1) Kidney

(2) Spleen

(3) Intestine

(4) Bone-marrow


103. Trypsin differs from pepsin because it digests :

(1) Carbohydrate in alkaline medium in stomach

(2) Protein, in alkaline medium in stomach

(3) Protein, in acidic medium of stomach

(4) Protein, in alkaline medium in duodenum


104. Pancreatic juice is :

(1) Alkaline in nature

(2) Acidic in nature

(3) Neutral in nature

(4) Both acidic and alkaline in nature


105. Bilirubin and Biliverdin are present in :

(1) Pancreatic Juice

(2) Saliva

(3) Bile juice

(4) Intestinal juice


106. The amount of gastric juice secreted per day from

man's stomach is about :

(1) 500 ml. to 1000 ml

(2) 2000 ml to 3000 ml

(3) 100 ml to 500 ml

(4) 10 ml to 15 ml


107. The function of enterogasterone hormone is :

(1) to control excretion

(2) to inhibit gastric juice secretion

(3) regulate the absorption of food

(4) to stimulate gastric glands to release gastric juice


108. What is the common passage for bile and pancreatic

juices

(1) Ampulla of Vater

(2) Ductus Choledochus

(3) Duct of Wirsung

(4) Duct of Santorini


109. Pepsinogen is secreted from :

(1) argentaffin cells

(2) goblet cells

(3) chief cells

(4) parietal cells


110. Cells of the pancreas is not digested by their own

enzymes because :

(1) enzymes are secreted in inactive form

(2) cells are lined by mucous membrane

(3) enzymes are released only when needed

(4) none of the above


111. Secretin :

(1) Stimulates enzymes secretion by pancreas,

inhibits acid secretion in stomach, stimulates

gall bladder

(2) Stimulates bicarbonate secretion by pancreas,

inhibits acid secretion in stomach, stimulates

bicarbonate secretion by liver

(3) Stimulates acid secretion in stomach, potentiates

action of CCK, inhibits intestinal movement

(4) Stimulates gall bladder, inhibits acid secretion in

stomach, stimulates bicarbonate secretion by

pancreas


112. Vitamins are -

(1) Inorganic substances and can't be synthesized

by animals.

(2) Inorganic substances and can be synthesized by

animals.

(3) Organic substances which cannot mostly be

synthesized by animals.

(4) Organic substances which can mostly be

synthesized by animals.


113. Which should not be eaten too much during hot

months-

(1) Vitamins 

(2) Fats

(3) Mineral salts 

(4) Proteins


114. To get ample supply of carbohydrates, one should

eat -

(1) Meat 

(2) Gram

(3) Carrots 

(4) Rice


115. Protein are mainly required in the body for-

(1) Growth

(2) Repair

(3) Both of these

(4) None of these


116. A person deficient in Rhodopsin (visual pigment)

should take-

(1) Tomatoes 

(2) Radish

(3) Carrot 

(4) Guavas


Rickets is caused by the deficiency of-

(1) Vit A 

(2) Vit C

(3) Vit D 

(4) Vit B


118. Pernicious anaemia is caused by deficiency of

vitamin- ,

(1) C 

(2) B1

(3) B12 

(4) B6


119. Another substance of the category of glucose,

sucrose and maltose is-

(1) Myoglobin

(2) Starch

(3) Amino acids

(4) Haemoglobin


120. A person with bleeding gums should daily take-

(1) Milk 

(2) Carrots

(3) Lemons 

(4) Butter


121. Rickets is a disease of which category-

(1) Infective disease

(2) Deficiency disease

(3) Communicable disease

(4) Inheritable disease


122. Thiamine is another name for-

(1) Vit B2

(2) Vit A

(3) Vit B1

(4) Vit B Complex


123. Vit D is also called-

(1) Calciferol 

(2) Ascorbic acid

(3) Retinol 

(4) Folic Acid


124. In mammals carbohydrate are stored in the form

of-

(1) Lactic acid in muscles

(2) Glycogen in liver and muscles

(3) Glucose in liver and muscles

(4) Glycogen in liver and spleen


125. Which pairing is not correct-

(1) Vit D -Rickets 

(2) Vit K - Sterility

(3) Thiamine - Beri-Beri 

(4) Niacin - Pellagra


126. Bow - shaped legs in children are due to deficiency

of Vitamin-

(1) D 

(2) A 

(3) B 

(4) C


127. Beri-Beri, Scurvy and Rickets are respectively

caused by deficiency of -

(1) B, D & C 

(2) B, C & D

(3) D, B & A 

(4) A, D & C


128. Vit K is a required for-

(1) Change of Prothrombin to thrombin

(2) Synthesis of Prothrombin

(3) Change of Fibrinogen to Fibrin

(4) Formation of thromboplastin


129. Dermatitis, diarrhoea and dementia are seen in

deficiency of :-

(1) Thiamine 

(2) Riboflavin

(3) Niacin 

(4) Foliate


130. The vitamin that is useful in cancer is vitamin :-

(1) A 

(2) B17

(3) C 

(4) All of these


131. Vitamin which induces maturation of R.B.C.:-

(1) B1 

(2) A

(3) B12 

(4) D


132. Which one is wrong pair :-

(1) Scurvy – Vitamin C

(2) Rickets – Vitamin D

(3) Night blindness (Xerophthalmia) – Vitamin A

(4) Beriberi – Vitamin K


133. Which one correctly matched :-

(1) Vit. E – Tocoferol

(2) Vit. D – Riboflavin

(3) Vit. B – Calciferol

(4) Vit. A – Thiamine

134. Vitamin–C is :–

(1) Ascorbic acid

(2) Citric acid

(3) Phosphoric acid

(4) Glutamic acid


135. Which one of the following is the correct matching

of a vitamin, its nature and its deficiency disease :

(1) Vitamin K–Fat soluble–Beri–Beri

(2) Vitamin A–Fat soluble–Beri–Beri

(3) Vitamin K– Water soluble–Pellagra

(4) VitaminA – Fat soluble–Night blindness


136. Scurvy disease is due to :

(1) Presence of h-factor in blood

(2) Deficiency of vitamin E

(3) Virus

(4) Deficiency of vitamin C


137. In adults the deficiency of vitamin D causes :

(1) Rickets 

(2) Beri-beri

(3) Scurvy 

(4) Osteomalacia


138. Which of the following vitamin synthesise in animal

body by bacteria :

(1) C 

(2) A

(3) E 

(4) B12


139. Marasmus disease is caused due to :

(1) Protein deficiency

(2) Obesity

(3) Dwarfism

(4) Deficiency of vitamins


140. Which of the following does not belong to vitamin B

group :

(1) Riboflavin 

(2) Niacin

(3) Cyanocobalamine 

(4) Tocopherol


141. Certain B vitamins are:

(1) Enzymes 

(2) Co-enzymes

(3) Hormone 

(4) Digestive substance


142. Deficiency of thiamine causes :

(1) Beri-beri 

(2) Rickets

(3) Caries 

(4) Pellagra


143. Vitamin C is helpful in the :

(1) Formation of visual pigment

(2) Growth of bones

(3) Treatment of pernicious anaemia

(4) Wound healing

































(Conceptual Questions) ANSWER KEY

Que. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Ans. 3 1 1 1 1 3 2 1 2 2 2 2 3 3 3

Que. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Ans. 3 2 2 2 1 3 2 3 1 4 3 2 2 1 1

Que. 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Ans. 1 3 1 1 1 1 3 2 1 1 3 2 1 1 4

Que. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Ans. 4 3 3 1 3 4 1 4 4 2 1 2 1 2 2

Que. 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

Ans. 1 3 4 1 2 4 2 4 1 2 2 3 4 2 1

Que. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90

Ans. 2 2 1 3 1 1 2 1 4 3 4 2 4 4 1

Que. 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105

Ans. 2 3 1 3 1 1 1 2 2 2 1 3 4 1 3

Que. 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120

Ans. 2 2 1 3 1 2 3 2 4 3 3 3 3 2 3

Que. 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135

Ans. 2 3 1 2 2 1 2 2 3 4 3 4 1 1 4

Que. 136 137 138 139 140 141 142 143

Ans. 4 4 4 1 4 2 1 4

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