Enzyme Inhibition Types and Effects
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Questions and Answers

What is the result of enzyme inhibition?

  • An increase in the catalytic activity of an enzyme
  • An alteration in the optimal pH of an enzyme
  • A loss of catalytic activity of an enzyme (correct)
  • A change in the substrate specificity of an enzyme

What can enzyme inhibitors do to the protein structure of an enzyme?

  • Change the protein structure of an enzyme (correct)
  • Increase the protein structure of an enzyme
  • Destroy the protein structure of an enzyme
  • Maintain the protein structure of an enzyme

What type of enzyme inhibitors are there?

  • Only competitive inhibitors
  • Both competitive and noncompetitive inhibitors (correct)
  • Only noncompetitive inhibitors
  • Neither competitive nor noncompetitive inhibitors

What can be a characteristic of the effects of some inhibitors?

<p>Sometimes irreversible (C)</p> Signup and view all the answers

What are molecules that prevent enzymes from catalyzing reactions called?

<p>Inhibitors (D)</p> Signup and view all the answers

What is the effect of increasing substrate concentration on an inhibited enzyme?

<p>It reverses the effect of inhibition (D)</p> Signup and view all the answers

What is the term for inhibition that occurs when the inhibitor binds somewhere other than the active site?

<p>Noncompetitive inhibition (A)</p> Signup and view all the answers

How does noncompetitive inhibition affect the enzyme's shape?

<p>It changes the enzyme's shape, decreasing its activity (C)</p> Signup and view all the answers

What happens when an enzyme is inhibited through covalent binding?

<p>The inhibition is irreversible (D)</p> Signup and view all the answers

What is the result of decreasing the concentration of a noncompetitive inhibitor?

<p>The enzyme's activity increases (B)</p> Signup and view all the answers

What is the result of an inhibitor forming a covalent bond with an enzyme?

<p>The inhibition is permanent (B)</p> Signup and view all the answers

What is the key difference between competitive and noncompetitive inhibition?

<p>The location of inhibitor binding (B)</p> Signup and view all the answers

What type of inhibition occurs when an inhibitor binds covalently to an enzyme?

<p>Irreversible inhibition (A)</p> Signup and view all the answers

What is the characteristic of inhibition when an inhibitor covalently binds to an enzyme?

<p>It is irreversible (C)</p> Signup and view all the answers

What happens to the enzyme when an inhibitor forms a covalent bond with it?

<p>The enzyme is permanently inhibited (A)</p> Signup and view all the answers

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