Multiple Choice
Which of these statements about enzyme inhibitors is true?
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7. Enzyme Inhibition and Regulation
Enzyme Inhibition
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In order to reuse an enzyme after the conclusion of an enzyme-catalyzed reaction, which of the following must be true about the enzyme?
A
The enzyme must remain unchanged in structure after the reaction.
B
The enzyme must be consumed as a reactant.
C
The enzyme must be covalently bonded to the product.
D
The enzyme must be permanently inactivated by the substrate.
Verified step by step guidance1
Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up reactions without being consumed or permanently altered in the process.
Recall the principle of enzyme functionality: Enzymes work by lowering the activation energy of a reaction, forming an enzyme-substrate complex temporarily, and then releasing the product while remaining unchanged.
Evaluate the options provided: Analyze each statement to determine whether it aligns with the fundamental properties of enzymes. For example, enzymes are not consumed as reactants, nor do they form permanent covalent bonds with products.
Focus on the correct characteristic: The enzyme must remain unchanged in structure after the reaction to be reused. This is a key feature of enzymes that allows them to catalyze multiple reactions.
Conclude the reasoning: The correct answer is based on the fact that enzymes are reusable because their structure and functionality remain intact after the reaction.
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