Answer:
The small intestine is
the site of the complete digestion of fats. The food coming from the stomach is
acidic and has to be made alkaline for the pancreatic enzymes to act. It is
made alkaline by bile juice secreted by the liver. The upper part of small
intestine, also called duodenum, receives bile juice from the liver and the
enzyme lipase from pancreatic juice. Bile salts break them down into smaller
globules thereby increasing the efficiency of enzyme action and lipase for
breaking down emulsified fats. The wall of the small intestine contain glands
which secrete intestinal juice. The enzymes present in it finally convert the
fats into fatty acids and glycerol. The latter are absorbed by villi and passed
into their lacterals where fat is again formed.
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