Describe the digestion that takes place in small intestine.List down the final products of digestion in the small intestine
Answers
Complete digestion in the small intestine
Small intestine is made up of three regions namely duodenum, jejunum and ileum. Partially digested food called the chyme from the stomach is received by the duodenum. Duodenum also receives bile form the liver, enzymes from pancreas and secretes some enzymes on its own. All these substances bring about digestion of food in the intestine. The inner walls of the small intestine have millions of small finger like projections called the villi. Villi increase the surface area for digestion as well as absorption of digested food by eight times.
Glucose , amino acids are sent into blood through blood vessels and fatty acids are sent to lymph through lymphatic capillary called as lacteal in the villi.
Final Products of digestion
Amino acids by complete digestion of Proteins in the small intestine.
Fatty acids by complete digestion of fats and oils.
Maltose sugar by digestion of starch through salivary amylase in the mouth.
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