Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst - AQA - A-Level Biology - Question 1 - 2021 - Paper 1
Question 1
Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst.
1. The substrate binds to the active site of the enzyme, forming an enzyme-sub... show full transcript
Worked Solution & Example Answer:Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst - AQA - A-Level Biology - Question 1 - 2021 - Paper 1
Step 1
Describe the induced-fit model of enzyme action
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Answer
The substrate binds to the active site of the enzyme, forming an enzyme-substrate complex.
During this binding, the active site of the enzyme changes shape slightly, achieving a better fit for the substrate.
This change in shape reduces the activation energy required for the reaction to occur.
Step 2
How an enzyme acts as a catalyst
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Answer
Enzymes facilitate the conversion of substrates into products by lowering the activation energy required for the reaction. This means that the reaction can occur more quickly and efficiently compared to reactions without the enzyme.
