Digestive System Objective Questions(MCQs) & Answers | Gkseries Quiz

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21 Which of the following pair is characterised by swollen lips, thick pigmented skin of hands and legs and irritability ?
A Thiamine ---- Beri-Beri
B Protein ---- Kwashiorkor
C Nicotinamide ---- Pellagra
D Iodine ---- Goitre

Answer: Nicotinamide ---- Pellagra
22 Fructose is absorbed into the blood through mucosa cells of intestine by the process called
A Active transport
B Facilitated transport
C Simple diffusion
D Co-transport mechanism

Answer: Facilitated transport
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23 What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
A Gastric juice will be deficient in chymosin
B Gastric juice will be deficient in pepsinogen
C In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
D Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin

Answer: In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
24 The haemorrhagic disease of new born is caused due to the deficiency of
A vitamin-K
B vitamin-B12
C vitamin-B1
D vitamin-A

Answer: vitamin-K
25 In a person of advanced age, the hair become thinner gradually. It happens because of decrease in
A Synthesis of glucose
B Synthesis of proteins
C Energy availability
D Blood supply

Answer: Synthesis of proteins
26 When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from
A Marasmus
B Rickets
C kwashiorkor
D Pellagrar

Answer: Marasmus
27 If pancreas is removed, the compound which remains undigested is
A Carbohydrates
B Fats
C Proteins
D All of these

Answer: All of these
28 If for some reason our goblet cells are non-functional, this will adversly affect [2010]
A Production of somatostatin
B Secretion of sebum from the sebaceous glands
C Maturation of sperms
D Smooth movement of food down the intestine

Answer: Smooth movement of food down the intestine
29 Which one of the following statement is true regarding digestion and absorption of food in humans?
A Oxyntic cells in our stomach secrete the proenzyme pepsinogen
B Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+
C About 60% of starch is hydrolysed by salivary amylase in our mouth
D Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries

Answer: Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries
30 Where is protein digestion accomplished?
A Stomach
B Rectum
C Duodenum
D lleum

Answer: lleum
31 Duct leading from parotid gland and opening into vestibule is
A Stenson's duct
B Haversian duct
C Wolffian duct
D Infra-orbital duct

Answer: Stenson's duct
32 Calcium deficiency occurs in the absence of vitamin
A D
B C
C E
D B

Answer: D
33 Which part of body secretes the hormone secretin ?
A Oesophagus
B Duodenum
C Stomach
D lleum

Answer: Duodenum
34 The layer of cells that secret enamel of tooth is
A Dentoblast
B Ameloblast
C Osteoblast
D Odontoblast

Answer: Ameloblast
35 The contraction of gall bladder is due to
A Gastrin
B Secretin
C Cholecystokinin
D Enterogasterone

Answer: Cholecystokinin
36 Brunner's glands occur in
A Sub-mucosa of stomach
B Mucosa of oesophagus
C Mucosa of ileum
D Sub-mucosa of duodenum

Answer: Sub-mucosa of duodenum
37 During prolonged fasting, in what sequence are the following organic compounds used up by the body?
A First carbohydrates, next proteins and lastly lipids
B First proteins, next lipids and lastly carbohydrates
C First carbohydrates, next fats and lastly proteins
D First fats, next carbohydrates and lastly proteins

Answer: First carbohydrates, next fats and lastly proteins
38 Pancreas produces
A Three digestive enzymes and one hormone
B Three digestive enzymes and two hormones
C Two digestive enzymes and one hormone
D Three digestive enzymes and no hormone

Answer: Three digestive enzymes and two hormones
39 Carrier proteins faciliate the absorption of substance like
A Glucose and fatty acids
B Fatty acids and glycerol
C Fructose and some amino acids
D Amino acids and glucose

Answer: Amino acids and glucose
40 The vitamin-C or ascorbic acid prevents
A Rickets
B Pellagra
C Antibody synthesis
D Scurvy

Answer: Scurvy
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