Quiz: The Active Site Model (Lock-and-Key / Induced Fit)
Edexcel GCSE Biology
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Building on what you've learned about enzymes and biological catalysts, let's test your knowledge of the active site model!
What is the role of the active site in an enzyme?
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Which of the following statements about the lock-and-key model are correct? (Select all that apply)
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The {{blank0}} model suggests that the enzyme's active site is {{blank1}} to the substrate's shape.
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Match the items on the left with their correct pairs on the right
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Which model suggests that the active site changes shape to better fit the substrate?
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An enzyme catalyses a reaction 100 times faster than without it. If the reaction time without the enzyme is 500 seconds, what is the reaction time with the enzyme?
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Match the items on the left with their correct pairs on the right
What happens to an enzyme if the substrate does not fit its active site?
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Which of these factors can affect the shape of an enzyme's active site? (Select all that apply)
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