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प्रश्न
Why are villi present in the intestine and not in the stomach?
उत्तर
In the small intestine digestion gets completed and the absorption of digested food materials like glucose, amino acids, fatty acids, and glycerol takes place. The food materials are to be retained in the intestine by increasing the surface area. Hence villi are present in the intestine. The stomach is the temporary storing organ of food. In the stomach, HCl, pepsin, renin, and lipase are secreted. These are concerned with digestion. Hence villi are not present in the stomach.
संबंधित प्रश्न
What is chyme?
In small intestine, active absorption occurs in case of
Enterokinase takes part in the conversion of ______.
Match column I with column II and choose the correct option
| Column – I | Column – II |
| (P) Small intestine | (i) Largest factory |
| (Q) Pancreas | (ii) Absorption of Water |
| (R) Liver | (iii) Carrying electrolytic solution |
| (S) Colon | (iv) Digestion and absorption |
Match column I with column II and choose the correct option
| Column – I | Column – II |
| (P) Small intestine | (i) 23 cm |
| (Q) Large intestine | (ii) 4 meter |
| (R) Oesophagus | (iii) 12.5 cm |
| (S) Pharynx | (iv) 1.5 meter |
Match column I with column II and choose the correct option
| Column – I | Column – II |
| (P) Lipase | (i) Starch |
| (Q) Pepsin | (ii) Cassein |
| (R) Renin | (iii) Protein |
| (S) Ptyalin | (iv) Lipid |
Which of the following is not the function of liver?
Which of the following is not true regarding intestinal villi?
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
List the chemical changes that starch molecule undergoes from the time it reaches the small intestine.
