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Q. No.Identify the incorrect statement regarding the layers in the wall of alimentary canal:
1.
Serosa is the outermost layer and is made up of a thin mesothelium
with some connective tissues.
2.
Muscularis is formed by skeletal muscles usually arranged into an
outer circular and an inner longitudinal layer.
3.
The sub-mucosal layer is formed of loose connective tissues
containing nerves, blood and lymph vessels.
4.
The innermost layer lining the lumen of the alimentary
canal is the mucosa.
with some connective tissues.
outer circular and an inner longitudinal layer.
containing nerves, blood and lymph vessels.
canal is the mucosa.
Subtopic: Histology of Gut |
87%
From NCERT
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Intrinsic factor, a factor essential for the absorption of vitamin B12, is secreted by:
| 1. | Parietal cells of gastric mucosa |
| 2. | Goblet cells |
| 3. | Paneth cells in the small intestine |
| 4. | Brunner’s gland in the duodenum |
Subtopic: Gastric Secretions |
85%
From NCERT
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The bile released into the duodenum contains all the following except:
1. bile pigments
2. bile salts
3. cholesterol
4. digestive enzymes
1. bile pigments
2. bile salts
3. cholesterol
4. digestive enzymes
Subtopic: Bile |
82%
From NCERT
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Gross calorific values of carbohydrates, proteins and fats respectively are:
| 1. | 4.0 kcal/g, 4.0 kcal/g and 9.0 kcal/g |
| 2. | 4.0 kcal/g, 4.5 kcal/g and 9.0 kcal/g |
| 3. | 4.1 kcal/g, 5.65 kcal/g and 9.45 kcal/g |
| 4. | 4.1 kcal/g, 5.0 kcal/g and 9.45 kcal/g |
Subtopic: Calorific value |
75%
From NCERT
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Consider the two statements:
| Assertion (A): | End products of fat digestion cannot be absorbed into the blood. |
| Reason (R): | Fat is neither a polymer nor a macromolecule. |
| 1. | Both (A) and (R) are True and (R) correctly explains the (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain the (A). |
| 3. | (A) is False but (R) is True. |
| 4. | (A) is True but (R) is False. |
Subtopic: Absorption |
From NCERT
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Which enzyme catalyzes the hydrolysis of the disaccharide sucrose into glucose and fructose in plants?
1. Hexokinase
2. Invertase
3. Zymase
4. Aldolase
1. Hexokinase
2. Invertase
3. Zymase
4. Aldolase
Subtopic: DIGESTION OF FOOD |
81%
From NCERT
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In the human alimentary canal what part of the colon opens into the rectum?
1. Ascending
2. Transverse
3. Descending
4. Sigmoid
1. Ascending
2. Transverse
3. Descending
4. Sigmoid
Subtopic: Introduction to Digestive System | Alimentary Canal: Oral Cavity & Teeth |
65%
From NCERT
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The sphincter of Oddi guards the opening of:
1. Common hepatic duct
2. Common bile duct
3. Common hepato-pancreatic duct
4. Cystic duct
Subtopic: Accessory Digestive Glands |
93%
From NCERT
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Vomiting centre in human beings is located in:
1. Medulla oblongata
2. Pons
3. Hypothalamus
4. Thalamus
1. Medulla oblongata
2. Pons
3. Hypothalamus
4. Thalamus
Subtopic: Disorders of Digestive System |
91%
From NCERT
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Identify the incorrect statement:
| 1. | The end products of lipid, protein, and carbohydrate digestion enter the central lacteal of the villi. |
| 2. | Sphincters are muscles that encircle tubes and act as valves. |
| 3. | In diarrhea, too little water has been absorbed by the large intestine; in constipation, too much water has been absorbed. |
| 4. | Essential amino acids are those that are required in the diet because the body is unable to produce them. |
Subtopic: Absorption |
69%
From NCERT
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