Which One of the Following Statements Is True of Enzyme

question 62

Multiple Choice

Which one of the following statements is true of enzyme catalysts?

• A)Their catalytic activity is independent of pH.
• B)They are generally equally active on D and L isomers of a given substrate.
• C)They can increase the equilibrium constant for a given reaction by a thousand fold or more.
• D)They can increase the reaction rate for a given reaction by a thousand-fold or more.
• E)To be effective,they must be present at the same concentration as their substrate.

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