Characteristics of Enzymes
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Questions and Answers

What effect does uncompetitive inhibition have on the velocity (Vmax) and Km value?

  • Vmax is reduced, Km remains unchanged (correct)
  • Both Vmax and Km remain unchanged
  • Vmax remains unchanged, Km is reduced
  • Both Vmax and Km are reduced

    • What is the primary characteristic of an uncompetitive inhibitor with respect to the free enzyme?

  • Alters the enzyme's structure
  • High affinity for the free enzyme
  • Binds reversibly to the substrate
  • No affinity for the free enzyme (correct)

    • How does uncompetitive inhibition affect the binding of the inhibitor to the enzyme-substrate complex?

  • Binds to both the free enzyme and the enzyme-substrate complex
  • Binds only to the enzyme-substrate complex (correct)
  • Does not bind to the enzyme-substrate complex
  • Binds only to the free enzyme

    • Which of the following statements is true about Km in uncompetitive inhibition?

    <p>Km remains constant</p> Signup and view all the answers

    What happens to the velocity (Vmax) when uncompetitive inhibition occurs?

    <p>Vmax decreases</p> Signup and view all the answers

    In uncompetitive inhibition, what effect does the inhibitor have on the enzyme's activity?

    <p>Reduces the activity</p> Signup and view all the answers

    What distinguishes uncompetitive inhibition from other types of enzyme inhibition?

    <p>Inhibitor binds only to the enzyme-substrate complex</p> Signup and view all the answers

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