Multiple Choice
Why are denatured enzymes no longer functional?
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7. Enzyme Inhibition and Regulation
Enzyme Inhibition
Multiple Choice
Which of the following describes what happens to an enzyme after an enzyme-catalyzed reaction is completed?
A
The enzyme is consumed as a reactant in the reaction.
B
The enzyme is permanently altered and cannot be reused.
C
The enzyme becomes part of the product formed.
D
The enzyme is released unchanged and can catalyze another reaction.
Verified step by step guidance1
Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up reactions by lowering the activation energy without being consumed or permanently altered in the process.
Recall the principle of enzyme functionality: Enzymes bind to substrates at their active site, form an enzyme-substrate complex, and facilitate the conversion of substrates into products. Once the reaction is complete, the enzyme is released unchanged.
Clarify the options provided: Analyze each statement to determine its accuracy. For example, enzymes are not consumed as reactants, nor are they permanently altered or part of the product.
Focus on the correct description: The enzyme remains unchanged after the reaction and is free to catalyze another reaction. This property allows enzymes to be reused multiple times.
Conclude with the correct answer: The enzyme is released unchanged and can catalyze another reaction, which is a fundamental characteristic of enzymes in biochemical processes.
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