B2 3.4: Speeding up digestion

All information was taken directly from the AQA revision guide with only the key points from B2 3.4.

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  • Created by: JSpencer
  • Created on: 23-02-16 10:05
Where do protease enzymes work best and why?
In the stomach in acidic conditions.
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How is an acidic enviroment produced in the stomach?
Glands in the stomach wall produce hydrochloric acid to create very acidic conditions.
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Where do amylase and lipase work?
In the small intestine.
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In what pH do amylase and lipase work best?
Slightly alkali conditions.
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Where is bile produced?
In the liver
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Where is bile stored?
In the gall bladder
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What does the alkaline bile do?
It is squirted into the small intestine and neutralises the stomach acid.
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What does bile make the conditions in the small intestine?
Slightly alkaline.
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Where do enzymes work best?
In a narrow pH range.
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What is bile?
Yellowy - green liquid made in the liver stored in the gall bladder. It is released into the small intestine and emulsifys fats.
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Other cards in this set

Card 2

Front

How is an acidic enviroment produced in the stomach?

Back

Glands in the stomach wall produce hydrochloric acid to create very acidic conditions.

Card 3

Front

Where do amylase and lipase work?

Back

Preview of the front of card 3

Card 4

Front

In what pH do amylase and lipase work best?

Back

Preview of the front of card 4

Card 5

Front

Where is bile produced?

Back

Preview of the front of card 5
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