Large intestine is the major site for the absorption of proteins.
Important Questions on Digestion and Absorption
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:
Choose the correct statement out of the following:
(i) Absorption is the process by which the end products of digestion pass through intestinal mucosa into the blood or lymph.
(ii) Absorption is carried out by passive, active, or facilitated transport mechanisms.
(iii) Chylomicrons are very small protein-coated fat globules formed in the intestinal lumen.
(iv) The absorbed substances finally reach the tissues and are utilized for activities by process called egestion.
(i) Fructose is generally absorbed by simple diffusion.
(ii) The digestive wastes, solidified into coherent faeces in the rectum initiate an endocrinal action causing an urge or desire for its removal.
(iii) The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall and is called the chyme.
(iv) The secretions of the brush border cells of the mucosa along with the secretions of the goblet cells constitute the succus entericus.
Which of the above two statements have mistakes?
Small droplets called micelles are formed for the absorption of
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.
(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.
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
The metabolic pathway that results in generation of glucose from non-carbohydrate carbon substrates like amino acids and glycerol is called
Which of the following statement is incorrect?
