Quiz: Enzymes as Biological Catalysts
Edexcel Combined Science GCSE
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Welcome! Based on what you've learned about cells and their structures, let's explore how enzymes work as biological catalysts. Get ready for 10 questions to test your understanding!
What is the main function of enzymes in biological reactions?
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Which of the following are true about enzymes? (Select all that apply)
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Enzymes speed up reactions by lowering the {{blank0}} energy required to start the reaction.
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Match the items on the left with their correct pairs on the right
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A scientist measures the rate of reaction at 30°C and finds it is 6 reactions per minute. At 40°C, the rate increases to 12 reactions per minute. What is the overall increase in reaction rate?
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What happens to enzymes at very high temperatures?
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Which of the following factors can affect enzyme activity? (Select all that apply)
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An enzyme works best at its {{blank0}} pH and temperature.
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Match the items on the left with their correct pairs on the right
What does the 'lock and key' model of enzyme action describe?
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