Crabohydrate digestion

Learning objectives:

How does salivary amylase act in the mouth to hydrolyse starch?

How is starch digestion completed in the small intestine?

How are dissacharides digested?

What is lactose intolerance?

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  • Created by: Katie
  • Created on: 24-05-10 12:08

explain starch digestion

Firstly the enzyme amylase is produced in the mouth and the pancreas.

Amylase hydrolyses the alternate glycosidic bonds of the starch molecule to produce the dissacharide maltose.

The maltose is in turn hydrolysed into the monosaccharide alpha glucose by a second enzyme, maltase.

Maltase is produced by the lining of the intestine.

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What are the symptoms of lactose intolerance?





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