Digestive System MCQs | Digestive System Multiple Choice Questions with Answers

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Questions
1 Epithelial cells of the intestine involved in food absorption have on their surface
A Pinocytic vesicles
B Phagocytic vesicles
C Zymogen granules
D Microvilli

Answer: Microvilli
2 A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out is quite yellowish. What is this yellow colour due to ?
A Intestinal juice
B Bile pigments passed through bile juice
C Undigested milk protein casein
D Pancreatic juice poured into duodenum

Answer: Bile pigments passed through bile juice
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3 A dental disease characterised by moltting of teeth is due to the presence of a certain chemical element in drinking water. Which of the following is that element?
A Mercury
B Chlorine
C Boron
D Fluorine

Answer: Fluorine
4 Anxiety and eating spicy food together in an otherwise normal human, may lead to
A Indigestion
B Jaundice
C Diarrhoea
D Vomiting

Answer: Indigestion
5 Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
A Diaphragm
B Neck
C Tongue
D Epiglottis

Answer: Diaphragm
6 Which one of the following is a protein deficiency disease?
A Eczema
B Cirrhosis
C Night blindness
D Kwashiorkor

Answer: Kwashiorkor
7 In frog, the surface of attachment of tongue is
A Sphenoid
B Palatine
C Pterygoid
D Hyoid apparatus

Answer: Hyoid apparatus
8 Rennin acts on
A Milk changing casein into calcium paracaseinate at 7.2 - 8.2 pH
B Protein in stomach
C Fat in intestine
D Milk changing casein into calcium paracaseinate at 1-3 pH

Answer: Milk changing casein into calcium paracaseinate at 1-3 pH
9 Release of pancreatic juice is stimulated by
A Enterokinase
B Cholecystokinin
C Secretin
D Both b and c

Answer: Both b and c
10 The hormone that stimulates the stomach to secrete gastric juice is
A Gastrin
B Renin
C Enterokinase
D Enterogasterone

Answer: Gastrin
11 The enzyme enterokinase helps in the conversion of
A Pepsinogen into pepsin
B Trypsinogen into trypsin
C Caseinogen into casein
D Caseinogen into casein

Answer: Trypsinogen into trypsin
12 Cholecystokinin and duocrinin are secreted by
A Adrenal cortex
B Thyroid gland
C Pancreas
D Intestine

Answer: Intestine
13 Inhibition of gastric and stimulation of gastric, pancreatic and bile secretions are controlled by hormones
A Gastrin, secretin, enterokinin and cholecystokinin
B Gastrin, enterogasterone, cholecystokinin and pancreozymin
C Secretin, enterogasterone, gastrin and enterokinin
D Enterogasterone, gastrin, pancreozymin and cholecystokinin

Answer: Enterogasterone, gastrin, pancreozymin and cholecystokinin
14 Stool of a person contains whitish grey colour due to malfunction of which type of organ ?
A Pancreas
B Spleen
C Kidney
D Liver

Answer: Liver
15 What is common among amylase, rennin and trypsin ?
A These ast as a pH lower than 7
B These are produced in stomach
C These all are proteolytic enzymes
D These all are proteins

Answer: These all are proteins
16 Most of the digestion occurs in
A Rectum
B Stomach
C Duodenum
D Small intestine

Answer: Small intestine
17 To which of the following family do folic acid and pantothenic acid belong?
A Vitamin-B complex
B Vitamin-C
C Vitamin-K
D Vitamin-A

Answer: Vitamin-B complex
18 Which one of the following pairs of food components in humans reaches the stomach totally undigested?
A Protein and starch
B Starch and fat
C Fat and cellulose
D Starch and cellulose

Answer: Fat and cellulose
19 Lactose is composed of
A glucose + fructose
B glucose + glucose
C fructose + galactose
D glucose + galactose

Answer: glucose + galactose
20 Which one of the following amino acids is an essential part of human diet ?
A Glycine
B Phenylalanine
C Serine
D Aspartic acid

Answer: Phenylalanine

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