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Digestion And Absorption Mcq
Quiz 25
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Q.1
on Q195) After a diet rich in fat and its digestion and absorption, Chylomicrons accumulate in:
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a) Lacteals
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b) Liver
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c) Colon
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d) Vermiform appendix
Explanation
Answer:(a)
Q.2
on Q196) Find the incorrect statement:
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a) Brunner’s glands are the only submucosal glands.
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b) Goblet cells are unicellular glands of mucosa
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c) Glisson’s capsule is the connective tissue covering of hepatic lobules
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d) Serosa lies in close proximity to circular muscles of muscularis.
Explanation
Answer:(d)
Q.3
on Q197) In jaundice, yellow colouration of eyes and skin is due to increase in:
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a) Brunner’s secretion.
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b) Bilirubin.
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c) Biliverdin
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d) Urobilin
Explanation
Answer:(c)
Q.4
on Q198) Select the correct match;
Steapsin
p. Universal enzyme
Trypsin
q. Enzyme of enzyme
Pepsin
r. Principle lipase
Amylase
s. First enzyme to act on protein in GIT
Enterokinase.
t. First enzyme of GIT to act on food
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a) 1 → p, 2 → r; 3 → s, 4 → t, 5 → q
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b) 1 → r, 2 → p; 3 → q, 4 → s, 5 → t
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c) 1 → s, 2 → t; 3 → p, 4 → r, 5 → q
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d) 1 → r, 2 → p; 3 → s, 4 → t, 5 → q
Explanation
Steapsin belongs to the class of digestive enzymes called lipases a = r Trypsin is a digestive enzyme of family of serine proteases. trypsin is called universal enzyme. 2 = p low pH of the gastric juice activates pepsinogen, a zymogen, to pepsin, the first enzyme involved in protein digestion 3 = s Amylase is the first enzyme to act on protein in GIT 4 = t Answer:(d)
Q.5
on Q199) Among the following the protein deficiency disease accompanied by calorie food deficiency is:
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a) Kwashiorkor
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b) Marasmus
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c) Proteinemia
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d) Oedema
Explanation
Answer:(b)
Q.6
on Q200) Select the wrong statement:
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a) The breakdown of Biomacromolecules occurs in the duodenum
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b) Pancreas is an elongated gland that is situated between the limbs of the U shaped duodenum
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c) Ileum is the last part of the small intestine
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d) Chief cells or zymogenic cells secrete large quantity of HCl
Explanation
Answer:(d)
Q.7
on Q201) Regurgitation (backward flow) of food from stomach is prevented by:
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a) Gastro-oesophageal sphincter
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b) Sphincter of Oddi
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c) Pyloric sphincter
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d) Illeocaecal valve
Explanation
Answer:(a)
Q.8
on Q202) If for some reasons our chief cells are non-functional, this will adversely affect:
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a) Conversion of Trypsinogen to trypsin
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b) Secretion of sebum from the sebaceous glands
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c) Protein digestion in stomach
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d) Absorption of vitamin B12
Explanation
Answer:(c)
Q.9
on 203) Which of the following statements is true about alimentary canal?
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a) Fundus region of stomach opens into the first part of small intestine
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b) The opening of the stomach into the duodenum is guarded by the Sphincter of Oddi.
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c) Large intestine consists of Caecum, ileum, colon and rectum
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d) Caecum is a small, blind sac which hosts some symbiotic microorganisms
Explanation
Answer:(d)
Q.10
on Q204) All the following are released as proenzyme except:
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a) Pepsin.
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b) Rennin.
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c) Trypsin.
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d) Nucleosidase
Explanation
Answer:(d)
Q.11
on Q205) pH of intestinal juice is:
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a) 6.8
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b) 1.2
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c) 4.2
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d) 7.8
Explanation
Answer:(d)
Q.12
on Q206) Read the following statements carefully and choose the correct option: Human liver is bilobed and weighs 2.2 to 2.5kg. pH of gastric juice is 6.8 and pH of saliva is 1. Saliva contains amylase, Lysozyme, and electrolytes (Na+, K+, Cl-, HCO3-). Each lobule of liver is guarded by Sphincter of Oddi. Digestion is initiated by ptyalin and it hydrolyses 30% of starch in oral cavity.
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a) Statements 1, 2 and 4 are wrong
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b) Only statement 5 is wrong.
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c) Statements 3 and 5 are wrong
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d) Statements 2 and 5 are false
Explanation
Answer:(a)
Q.13
on Q207) How many are true: (i) Abomassum is the true stomach of ruminants. (ii) Epiglottis prevents the entry of food into trachea. (iii) Pharynx is the common part of digestive and respiratory tract. (iv) Vermiform appendix arises from ileum. (v) Fungiform and circumvallate papillae bears taste buds.
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a) One
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b) Two
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c) Three
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d) Four
Explanation
Answer:(d)
0 h : 0 m : 1 s
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