Q. No.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
1. Goblet cells
2. Brunner’s glands
3. Parietal cells
4. Pancreas
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Consider the following statements regarding the constituents of the human tooth:
I. Enamel is the hardest part of the tooth and is secreted by the ameloblasts
II. Dentin does not contain collagen and is secreted by odontoblasts
III. Cementum is a bone-like substance secreted by cementoblasts
IV. Pulp is called as the “nerve” of the tooth
The incorrect statement/s is/are:
1. II alone
2. IV alone
3. II and IV only
4. I and III only
Lipases can be activated by:
1. HCl
2. Secretions of Brunner’s glands
3. Bile
4. Cholecystokinin
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The submucosa of the wall of intestine is composed of:
1. Simple epithelium
2. Stratified epithelium
3. Connective tissue
4. Smooth muscles
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Villi are supplied with a network of capillaries and a large lymph vessel called the:
| 1. Portal vessel | 2. Lacteal |
| 3. Thoracic duct | 4. Cisterna chyli |
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The duct of gall bladder (cystic duct) along with the hepatic duct from the liver forms the:
1. Common hepatopancreatic duct
2. Duct of Rivinus
3. Wharton’s duct
4. Common bile duct
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The gall bladder in humans:
1. Secretes bile
2. Releases bile into hepatic duct
3. Stores and concentrates bile
4. Secretes some lipase
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The wall of alimentary canal from oesophagus to rectum possesses four layers. The correct sequence of these layers from the outermost to the inner most is:
1. Serosa, Muscularis, Submucosa, Mucosa
2. Mucosa, Submucosa, Muscularis, Serosa
3. Serosa, Muscularis, Mucosa, Submucosa
4. Mucosa, Muscularis, Submucosa, Serosa
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About what percentage of starch is hydrolysed by salivary amylase into maltose?
1. 30 – 40
2. 50 – 60
3. 60 – 70
4. 90 – 100
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Proteolytic enzymes found in stomach of an infant include:
I. Rennin
II. Pepsin
III. Tyrpsin
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
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