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प्रश्न
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उत्तर
The pancreatic juice contains proenzymes trypsinogen, chymotrypsinogen, procarboxy peptidase, pancreatic amylase, and pancreatic lipase.
(a) Digestion of proteins by pancreatic juice: Trysinogen converts into trypsin in the presence of enterokinase. Trypsin converts chymotrypsinogen into chymotrypsin; procarboxypeptidase into carboxy-peptidase; and peptones into peptides. Trypsin, chymotrypsin, and carboxy-peptidase act upon proteins. Chymotrypsin also converts peptones into peptides. Peptides get converted into smaller peptides and amino acids in the presence of carboxypeptidase.
Trypsin ogen \[\ce{->[Enterokinase][of interstinal juice]}\] Trypsin
Chymotrypsin ogen \[\ce{->[Trypsin]}\] Chymotrypsin
Procarboxypep tidase \[\ce{->[Trypsin]}\] Carboxy - peptidase
Peptones \[\ce{->[Trypsin]}\] Peptides
Peptones \[\ce{->[Chymotrypsin]}\] Peptides
Peptides \[\ce{->[carboxypeptidase]}\] Smaller Peptides + Amino acid
(b) Digestion of carbohydrates by pancreatic juice: Pancreatic amylase acts upon starch in the presence of chlor ide ions and converts it into maltose, isomaltose and dextrin.
Starch \[\ce{->[Pancreatic][Amlylase + Cl-]}\] Maltose + Isomaltose + Limit dextrin.
(c) Digestion of fats: Pancreatic juice contains pancreatic lipase which emusifies the fats into fatty acids and glycerol.
Emulsified fat\[\ce{->[Pancreatic][lipase]}\] Fatty acid+ Glycerol
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संबंधित प्रश्न
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| Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas. |
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