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प्रश्न
Name the part of the alimentary canal where major absorption of digested food takes place. What are the absorbed forms of different kinds of food materials?
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उत्तर
The small intestine is where most digested food is absorbed. This occurs in the jejunum and ileum, two small intestine sections bordered by finger-like villi projections. Glucose is the type of carbohydrate that is absorbed. Protein absorption takes place in the form of Amino acids. Fatty acids and glycerol are the two forms of fat that are absorbed.
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संबंधित प्रश्न
Choose the correct answer among the following:
Gastric juice contains
(i) pepsin, lipase and rennin
(ii) trypsin lipase and rennin
(iii) trypsin, pepsin and lipase
(iv) trypsin, pepsin and renin
Choose the correct answer among the following:
Succus entericus is the name given to
(i) a junction between ileum and large intestine
(ii) intestinal juice
(iii) swelling in the gut
(iv) appendix
Match column I with column II
| Column I | Column II | ||
| a | Bilirubin and biliverdin | 1 | Parotid |
| b | Hydrolysis of starch | 2 | Bile |
| c | Digestion of fat | 3 | Lipases |
| d | Salivary gland | 4 | Amylases |
Answer briefly:
How does bile help in the digestion of fats?
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
Describe the digestive role of chymotrypsin. What two other digestive enzymes of the same category are secreted by its source gland?
How are polysaccharides and disaccharides digested?
What would happen if HCl were not secreted in the stomach?
How does butter in your food gets digested and absorbed in the body?
Which of the following sphincter controls the passage of food into the stomach?
Emulsification of fats is brought about by ______.
Mark the right statement among the following
The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall. What do we call the food then?
Define digestion in one sentence.
Correct the following statement by deleting one of entries (given in bold).
Goblet cells are located in the intestinal mucosal epithelium and secrete chymotrypsin/mucus.
Correct the following statement by deleting one of entries (given in bold).
Saliva contains enzymes that digest starch/protein.
How is the intestinal mucosa protected from the acidic food entering from stomach?
How are the activities of gastro-intestinal tract regulated?
A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal.
