biological catalyst to speed up the rate of reaction without being used up
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steps of a catalysed enzyme
step 1 - enzyme and substrate move randomly
step 2 - when an enzyme and its complementary shape randomly collide, an enzyme- subtrade forms
step 3 - a product forms and it is released from active site
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what is denaturation?
active site loses its shape and bonds are broken
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what causes denaturation
high temperature and extreme pH
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What is optimum temperature in the human body
37 degrees
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how does temperature affect enzyme activity
as temperature increases enzyme activity increases
- because there is more kinetic energy, so enzymes more around faster and there are more frequent collisions
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what is the optimum pH for humans
pH 7
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rate calculation
change/time
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what is the purpose of digestion?
to break down large, insoluble molecules into smaller, soluble molecules that can be absorbed into the bloodstream
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what are digestive enzymes
carbohydrase, protease and lipase
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what do carbohydrase break down
carbohydrates into simple sugars
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what do protease break down
proteins into amino acids
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what do lipase break down
lipids to glycerol and fatty acids
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Other cards in this set
Card 2
Front
steps of a catalysed enzyme
Back
step 1 - enzyme and substrate move randomly
step 2 - when an enzyme and its complementary shape randomly collide, an enzyme- subtrade forms
step 3 - a product forms and it is released from active site
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