Which of the following statements are incorrect about chylomicrons?
(i) Chylomicrons are produced in the epithelial cells of small intestine.
(ii) It contains triglycerides, cholesterol and phospholipids.
(iii) They are protein coated small vesicles.
(iv) Chylomicrons are released from the epithelial cell into lacteals.
Important Questions on Digestion and Absorption
Match the following
| List - I | List - II | ||
| (a) | Villikinin | (i) | Stimulates the secretion of and pepsinogen |
| (b) | Secretin | (ii) | Stimulates the secretions of and |
| (c) | Gastrin | (iii) | Stimulates intestinal epithelial movement to increase nutrient absorption |
| (d) | Cholecystokinin | (iv) | Stimulates the secretion of pancreatic enzymes and bile juice |
The correct answer is
Given below are two statements:
Statement I: Fatty acids and glycerols cannot be absorbed into the blood.
Statement II: Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.
In light of the above statements, choose the most appropriate answer from the options given below:
Which of the following statement is incorrect?
i. Absorption of simple sugar, alcohol, some water, and medicines takes place in the stomach.
ii. Maximum of total water ingested is absorbed in the small intestine.
iii. The small intestine is the major site of digestion and absorption of food.
iv. Fatty acid and glycerol are absorbed by blood capillaries directly
Small amounts of monosaccharides like glucose, amino adds and some of electrolytes like chloride ions are absorbed by ___(i)_____. However, some of tire substances like fructose and some amino acids are absorbed by the mechanism called the ___(ii)____. Various nutrients like amino adds and electrolytes like are absorbed into the blood by _____(iii)_____.
A. The small intestine is the principal organ for the absorption of nutrients.
B. In constipation, the faeces are retained within the rectum as the bowel movements occur irregularly.
C. The gross calorific value of fat is 4.1 Kcal/g.
D. The innermost layer lining the lumen of the alimentary canal is the serosa.
How many of the above statements are wrong?
Which one of the following statement is true regarding the digestion and absorption of food in humans?
i. Absorption of simple sugar, alcohol, some water and medicines takes place in the stomach.
ii. Maximum of total water ingested is absorbed in the small intestine.
iii. The small intestine is the major site of digestion and absorption of food.
iv. Fatty acid and glycerol are absorbed by blood capillaries directly.
Fill in the blanks with the correct option:
Fatty acids and glycerol being ___(i)___, cannot be absorbed into the blood. They are first incorporated into small droplets called ___(ii)___ which move into the intestinal mucosa. They are re-formed into very small protein-coated fat globules called the ___(iii)___ which are transported into the ___(iv)___ in the villi.
