Q. No.A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out are quite yellowish. What is this yellow colour due to?
1. Intestinal juice
2. Bile pigments passed through bile juice
3. Undigested milk protein casein
4. Pancreatic juice poured into duodenum
1. Intestinal juice
2. Bile pigments passed through bile juice
3. Undigested milk protein casein
4. Pancreatic juice poured into duodenum
What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
1. Gastric juice will be deficient in chymosin
2. Gastric juice will be deficient in pepsinogen
3. In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
4. Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin
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Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
1. Duodenum :Triglycerides→Trypsin→Monoglycerides
2. Small intestine :Starch→α-amylase→Disaccharide (maltose)
3. Small intestine :Proteins→Pepsin→Amino Acids
4. Stomach :Fats→ Lipase→Micelles
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Which one of the following is a fat-soluble vitamin and its related deficiency disease?
1. Ascorbic acid - Scurvy
2. Retinol - Xerophthalmia
3. Cobalamine - Beri-Beri
4. Calciferol - Pellagra
Which of the following teeth are lophodont?
1. Incisor and canine
2. Canine and premolar
3. Premolar and molar
4. Premolar and incisor
Which of the following digestive juices has the minimum pH value?
1. Bile
2. Gastric juice
3. Saliva
4. Pancreatic juice
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The vitamin nicotinamide can be synthesized in our body from
| 1. tyrosine | 2. tryptophan |
| 3. valine | 4. phenylalanine |
Excessive stimulation of vagus nerve in humans may lead to:
1. hoarse voice
2. peptic ulcers
3. efficient digestion of proteins
4. irregular contractions of diaphragm.
Which one of the following pairs of the kind of cells and their secretion is correctly matched?
1. Oxyntic cells --- a secretion with pH between 2.0 and 3.0
2. Alpha cells of islets of Langerhans ---- secretion that decreases blood sugar level
3. Kupffer cells --- a digestive enzyme that hydrolyses nucleic acids
4. Sebaceous glands --- a secretion that evaporates for cooling
Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I Column II
I. Gastrin 1. Gall bladder contraction
II. CCK 2. Increased HCl secretion
III. Secretin 3. Bicarbonate secretion from pancreas
IV. GIP 4. Decreased stomach motility
Codes:
I II III IV
A. 1 2 3 4
B. 2 1 4 3
C. 2 1 3 4
D. 1 2 4 3
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