How Does Inhibition of an Enzyme-Catalyzed Reaction by a Competitive

question 72

Multiple Choice

How does inhibition of an enzyme-catalyzed reaction by a competitive inhibitor differ from inhibition by a noncompetitive inhibitor?

• A) Competitive inhibitors interfere with the enzyme; noncompetitive inhibitors interfere with the reactants.
• B) Competitive inhibitors bind to the enzyme reversibly; noncompetitive inhibitors bind to it irreversibly.
• C) Competitive inhibitors change the enzyme's tertiary structure; noncompetitive inhibitors cause polypeptide subunits to dissociate.
• D) Competitive inhibitors bind to the active site of the enzyme; noncompetitive inhibitors bind to a different site.

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Definitions:

Times Interest Earned Ratio

A financial metric that measures a company's ability to pay its interest expenses with its before-interest earnings.

Gross Margin Percentage

A financial metric indicating the percentage of revenue that exceeds the cost of goods sold, representing the proportion of each sales dollar that is gross profit.

Return on Equity

A measure of financial performance that calculates the return on shareholders' equity investments.

Equity Multiplier

A financial ratio indicating how much of a company's assets are financed by its shareholders' equity.