Digestion and Absorption
- Which of the following options best represents the enzyme composition of pancreatic juice?
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Rennin and Pepsin enzymes are present in the gastric juice whereas Maltase is present in the intestinal juice.
Correct Option: C
Rennin and Pepsin enzymes are present in the gastric juice whereas Maltase is present in the intestinal juice.
- Which enzymes are likely to act on the baked potatoes eaten by a man, starting from the mouth and as it moves down the alimentary canal?
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Chemical process of digestion starts in the oral cavity by the hydrolytic action of the carbohydrate splitting enzyme, the salivary amylase. Carbohydrates in the chyme are hydrolysed by pancreatic amylase into disaccharides.
Correct Option: D
Chemical process of digestion starts in the oral cavity by the hydrolytic action of the carbohydrate splitting enzyme, the salivary amylase. Carbohydrates in the chyme are hydrolysed by pancreatic amylase into disaccharides.
- A healthy person eats the following diet - 5 gm raw sugar, 4 gm albumin, 10 gm pure buffalo ghee adultrated with 2 gm vegetable ghee (hydrogenated vegetable oil) and 5 gm lignin. How many calories he is likely to get?
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Physiological value of carbohydrates is 4.0 kcal/g, proteins 4.0 kcal/g and of fats is 9.0 kcal/g. Hence,
5 g raw sugar will yield 5 × 4.0 = 20.0 kcal
4 g albumin (protein) will yield 4 × 4.0
= 16.0 kcal
10 + 2 g of fat will yield 12 × 9.0 = 108.0 kcal
Total yield = 144 kcal.Correct Option: A
Physiological value of carbohydrates is 4.0 kcal/g, proteins 4.0 kcal/g and of fats is 9.0 kcal/g. Hence,
5 g raw sugar will yield 5 × 4.0 = 20.0 kcal
4 g albumin (protein) will yield 4 × 4.0
= 16.0 kcal
10 + 2 g of fat will yield 12 × 9.0 = 108.0 kcal
Total yield = 144 kcal.
- In the stomach, gastric acid is secreted by the
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The main constituent of gastric acid is hydrochloric acid which is produced by parietal cells (also called oxyntic cells) in the gastric glands in the stomach.
Correct Option: B
The main constituent of gastric acid is hydrochloric acid which is produced by parietal cells (also called oxyntic cells) in the gastric glands in the stomach.
- Duct leading from parotid gland and opening into vestibule is
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A pair of parotid glands (the largest salivary glands) present in the cheeks just under the ears open in the vestibule (a narrow, groove like space which separates the gums from lips and cheeks) by the parotid ducts also known as Stensen’s duct.
Correct Option: B
A pair of parotid glands (the largest salivary glands) present in the cheeks just under the ears open in the vestibule (a narrow, groove like space which separates the gums from lips and cheeks) by the parotid ducts also known as Stensen’s duct.
