digestion

about the different organs and their functions in digestion

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  • Created by: maria_xo
  • Created on: 24-05-14 13:26
what is digestion?
it is all about breaking large insoluble molecules of food into smaller soluble ones so they can be absorbed
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alimentary canal
the canal where the food is broken down to its elements by mechanical and chemical procedures
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saliva
lubricates and makes it easy to swallow also it contains amylase which is a carbohydrate enzyme
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stomach
breaks down proteins with protease enzymes pepsin and trepsin
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how long does food stay in the stomach for?
4 hours
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what does the hydrochloric acid in the stomach do?
it kills all bacteria and has a low pH in order for the enzymes to work
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what does the liver do?
the liver makes bile which emulsifies (breaks up) fats. It is also alkaline to give the right pH for the enzymes in the small intestine
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what is the oesophagus?
it links the mouth to the stomach
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what is mechanical digestion?
breaking down food with teeth
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what is chemical digestion?
digestion using enzymes
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how long is the process of digestion?
12 - 16 hours
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Other cards in this set

Card 2

Front

alimentary canal

Back

the canal where the food is broken down to its elements by mechanical and chemical procedures

Card 3

Front

saliva

Back

Preview of the front of card 3

Card 4

Front

stomach

Back

Preview of the front of card 4

Card 5

Front

how long does food stay in the stomach for?

Back

Preview of the front of card 5
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