The Pyruvate Dehydrogenase Quiz

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Questions and Answers

Which enzyme catalyzes the oxidative decarboxylation of pyruvate to form acetyl-CoA?

  • Pyruvate Dehydrogenase (correct)
  • Dihydrolipoyl Dehydrogenase
  • Dihydrolipoyl Transacetylase
  • Pyruvate Dehydrogenase Kinase

Which cofactor is required for the activity of Pyruvate Dehydrogenase?

  • CoA
  • Lipoic Acid
  • Thiamine Pyrophosphate (B1) (correct)
  • FAD

Which enzyme is responsible for phosphorylating and inactivating Pyruvate Dehydrogenase?

  • Dihydrolipoyl Transacetylase
  • Pyruvate Dehydrogenase Kinase (correct)
  • Dihydrolipoyl Dehydrogenase
  • Pyruvate Dehydrogenase Phosphatase

Which of the following are cofactors for Dihydrolipoyl Transacetylase?

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

What is the end product of glycolysis?

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

What is the function of Pyruvate Dehydrogenase Phosphatase?

<p>To activate Pyruvate Dehydrogenase (A)</p> Signup and view all the answers

What is the function of Dihydrolipoyl Dehydrogenase?

<p>To oxidize dihydrolipoamide (D)</p> Signup and view all the answers

Which of the following is a cofactor for Dihydrolipoyl Dehydrogenase?

<p>FAD and NAD+ (C)</p> Signup and view all the answers

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