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1.7, 1.8 and 1.9 Enzymes: Mechanisms, Denaturation and Factors Affecting…
1.7, 1.8 and 1.9 Enzymes: Mechanisms, Denaturation and Factors Affecting Enzyme Activity
Intro
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Enzymes are biological catalysts (a substance that increases the rate of reaction without
being used up)
Lock and Key Hypothesis
The shape of the substrate is complementary to the shape of the active site (matches the shape of the active site), so when they bond it forms an enzyme-substrate complex
Once bound, the reaction the reaction takes place and the products are released from the surface of the enzyme
Enzyme Specificity
Enzymes can only catalyze (speed up) reactions when they bind to a substrate that has a complementary shape, as this is the only way that the substrate will fit into the active site
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