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What does digestion mean?
Digestion is the breakdown of carbohydrates, proteins and fats into small soluble substances that can be absorbed into the blood.
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amylase
starch → sugars
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protease
proteins → amino acids
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lipase
lipids → fatty acids + glycerol
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What do enzymes do?
The enzymes involved in respiration, photosynthesis and protein work inside cells.
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Different enzymes
Different enzymes catalyse different digestion reactions.
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What do Amylase do?
Amylase catalyses the breakdown of starch into sugars in the mouth and small intestine.
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protease
Proteases catalyse the breakdown of proteins into amino acids in the stomach and small intestine.
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lipase
Lipases catalyse the breakdown of fats and oils into fatty acids and glycerol in the small intestine.
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Card 2

Front

amylase

Back

starch → sugars

Card 3

Front

protease

Back

Preview of the front of card 3

Card 4

Front

lipase

Back

Preview of the front of card 4

Card 5

Front

What do enzymes do?

Back

Preview of the front of card 5
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