Digestion and AbsorptionHard
Question
Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting uponit and the end product ?
Options
A.Duodenum : Triglycerides trtpsin monoglycerides
B.Small intestine : Starch amylase disaccharide (maltose)
C.Small intestine : Proteins pepsin amino acids
D.Stomach : Fats, Lipase micelles
Solution
The pancreatic juice contains α amylase, which converts into maltose, isomaltose and α - dextrins in small intestine
The pancreatic juice also contains proenzymes trypsinogen, chymotrypsinogen and procarboxypeptidase. The trypsinosen is converted to active trypsin in intestine by enterokinase of intestinal juice. The trypsin converts proteins into large prptides and the large peptides are converted to dipeptide and amino acids by carboxypeptidase.
The stomach lacks any fat emulsifying agent and fat is largely digested in small intestine. Bile salts brakdown fat droplets into many small ones by reducing the surface tension of the fat droplets. Theis process is called emulsification. The lipase digests the emulsified fat into fatty acid and glycerol.
The pancreatic juice also contains proenzymes trypsinogen, chymotrypsinogen and procarboxypeptidase. The trypsinosen is converted to active trypsin in intestine by enterokinase of intestinal juice. The trypsin converts proteins into large prptides and the large peptides are converted to dipeptide and amino acids by carboxypeptidase.
The stomach lacks any fat emulsifying agent and fat is largely digested in small intestine. Bile salts brakdown fat droplets into many small ones by reducing the surface tension of the fat droplets. Theis process is called emulsification. The lipase digests the emulsified fat into fatty acid and glycerol.
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