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Question

Which of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?

A
Small intestine --- Proteins (Pepsin) ----->Amino acids
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B
Stomach ------- Fats (lipase) --------->Micelles
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C
Duodenum ------ Triglycerides (trypsin) ------->Monoglycerides
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D
Small intestine -------Starch (alpha-amylase) -------->Disaccharide (maltose)
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Solution

The correct option is D Small intestine -------Starch (alpha-amylase) -------->Disaccharide (maltose)
Pepsin is an enzyme present in the stomach which helps to degrade food proteins into amino acids. Lipases are produced by the pancreas. Triglycerides are acted upon by pancreatic lipase and not trypsin to give monoglycerides. The pancreas and salivary gland make amylase (alpha amylase) to hydrolyze dietary starch into disaccharides (maltose) in the small intestine and trisaccharides which are converted by other enzymes to glucose to supply the body with energy.

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