- 1(current)
Q. No.The peptic or chief cells of the gastric mucosa secrete:
1. Mucucs
2. HCl
3. A proenzyme
4. Prokinetic hormone
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The intestinal enzymes require an alkaline pH to act. This is accomplished by the secretions of all the following except:
1. Goblet cells
2. Brunner’s glands
3. Parietal cells
4. Pancreas
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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 hydrolyzed by pepsin into proteases and peptones.
4. The pancreatic enzymes, and especially trypsin and lipase, will not work efficiently.
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Match the items given in Column - I with those in Column - II and choose the correct option.
| Column-I | Column-II | ||
| (a) | Rennin | (i) | Vitamin B12 |
| (b) | Enterokinase | (ii) | Facilitated transport |
| (c) | Oxyntic cells | (iii) | Milk proteins |
| (d) | Fructose | (iv) | Trypsinogen |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (iii) | (i) | (ii) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iii) | (iv) | (i) | (ii) |
A peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility is:
1. GIP
2. gastrin
3. secretin
4. CCK
What types of digestive hydrolytic enzymes are commonly secreted as zymogens [inactive precursors]?
1. Proteolytic
2. Carbohydrases
3. Lipases
4. Nucleases
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The malfunction of which of the following cells in gastric mucosa can lead to the development of pernicious anemia?
1. Parietal cells
2. Chief cells
3. G cells
4. Enterochromaffin like cells
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- 1(current)
Q. No.
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