This post includes important one-liners from the chapter on digestion and absorption from biochemistry. This post summarises the chapter in short.
Biochemistry Important One Liners Questions On digestion and absorption
1
Cellulose is not digested in humans due to lack of the enzyme that hydrolyses
β-Glycosidic bonds
2
The most important carbohydrate associated with flatulence caused by ingestion of leguminous seeds
Raffinose
3
Lactose intolerance is caused by the deficiency of the enzyme
Lactase (β-galactosidase)
4
The non-digested carbohydrates are collectively called
Fiber
5
Gastric HCl is secreted by
Parietal (oxyntic) cells
6
Name of the peptide believed to be involved in the transport of amino acids
Glutathione
7
The disease characterized by impairment in the absorption of neutral amino acids
Hartnup’s disease
8
Trypsin hydrolyses peptide bonds, the carbonyl group of which is contributed by the amino acids
Arginine and lysine
9
The inhibition of the enzyme pancreatic lipase by bile salts is overcome by a protein, namely
Colipase
10
The vehicles for the transport of lipids from the intestinal lumen to the membrane of mucosal cells
Mixed micelles
11
The key enzyme that converts trypsinogen to trypsin is
Na+
12
Transport of glucose from the lumen to the intestinal mucosal cells is coupled with diffusion of
Enteropeptidase
13
The products obtained by the action of pancreatic lipase on triacylglycerols are
2-Acylglycerol and free fatty acids
14
The lipoproteins synthesized in the intestinal mucosal cells from the absorbed lipids are
Chylomicrons
15
Salivary -amylase becomes inactive in the stomach primarily due to
Inactivation by low pH
