AS BIOLOGY - {DIGESTION}

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  • Created by: Em
  • Created on: 15-09-13 17:55

Digestion Stages: 

1) Saliva contains amylase which breaks down starch into maltose (a-glucose + a-glucose). The Saliva Lubricates the food. 

2) In the Oesophagus, peristalsis is used to move the food along the digestive track. 

3) In the Stomach, there is a wall which is made of three layers of muscle these are longitudinal and circular. This does the churning and…

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