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Question : "Bile juice does not contain any enzyme but is essential for digestion ." Justify the statement.

Answer»

Solution :Bile is a YELLOWISH greenalkaline fluid secreted by liver. It contains bile pigments(bilirubin and biliverdin) and salts. Although it does not contain any digestive ENZYME but is still ESSENTIAL due to following reasons :
(1)Bile neutralisesthe acidity of CHYME and protectsthe duodenal wall from corrosion.
(2)Itmakes the food alkaline for the action of pancreatic juice.
(3)It breaksdown complex FAT into finesmall globules fortheaction of lipaseof pancreaticjuice. Breakingof fatinto fine small globules is referredas emulsification.


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