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How do carbohydrates, proteins, and fats get digested in human beings?

Answer»

Carbohydrate Digestion 

  • Digestion of cabohydrates starts with buccal cavity where salivary enzymes breaks down the starch into simple sugar molecules. 
  • Other sugar molecules are breakdown to glucose in small intestine. 

Protein digestion 

  • Proteins are partially digested by pepsin secreted by gastric glands present in the stomach. 
  • Then Pancreatic juice secrets trypsin and chymotrypsin enzymes in small intestine where complete digestion of proteins takes place. 

Fat Digestion 

  • Fats are digested in small intestine.
  • Bile juice present in the liver emulsifies the fat which breaks fats into small globules.
  • These small fat globules are converted into glycerol and fatty acids by Lipase enzyme.


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