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Starch is first broken down into maltose, a reducing sugar, in the mouth by salivary amylase. Starch that is not broken down in the mouth is digested in the small intestine by pancreatic amylase. Then, the maltose is further digested by the enzyme maltaseinto the final product glucose in the small intestine. Protein is broken down into amino acids in two places-the stomach, and/or the small intestine. In the stomach, it is broken down by pepsin, while it is digested by trypsin in the small intestine. Fats are digested only in the small intestine. It is first broken down into fatty droplets by bile*. Then, the fatty droplets is diegested into the final product 3 fatty acids and 1 glycerol by lipase. *Bile is not an enzyme.

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16y ago

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