MEDIUM
Earn 100
What is the role of bicarbonate ions in digestion?
Important Questions on Digestion and Absorption
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a) Circulation of bile juice between gall bladder and the liver through the cystic duct.
b) Combining of bile acids with sodium to form bile salts.
c) Bile salts after emulsification are absorbed back into the blood and are used in the liver for bile juice.
d) Bile salts of chylomicrons are released into the blood and are carried to the liver where they are not used in the formation of bile juice.
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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:
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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)_____.
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(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.
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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
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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?
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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.
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