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Substrate-Level Phosphorylation Quiz
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Substrate-Level Phosphorylation Quiz

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Questions and Answers

Which enzyme catalyzes the substrate-level phosphorylation of ADP to form ATP and 3-phosphoglycerate?

  • Hexokinase
  • Phosphoglycerate kinase (correct)
  • Pyruvate kinase
  • Enolase

    • What is the high energy enol phosphate formed during the dehydration of 2-phosphoglycerate by enolase?

  • ADP
  • ATP
  • PEP (correct)
  • NADH

    • What is the energy source for the production of a high energy phosphate during substrate-level phosphorylation of ADP by 1,3-bisphosphoglycerate?

  • NADH
  • FADH2
  • ATP
  • A substrate (correct)

    • Which reaction in glycolysis is catalyzed by enolase?

    <p>Formation of PEP from 2-phosphoglycerate</p> Signup and view all the answers

    Which reaction in glycolysis is the third irreversible reaction?

    <p>Formation of pyruvate from PEP</p> Signup and view all the answers

    Which enzyme catalyzes the conversion of PEP to pyruvate in glycolysis?

    <p>Pyruvate kinase</p> Signup and view all the answers

    Which reaction in glycolysis results in the formation of the second ATP by substrate-level phosphorylation?

    <p>Formation of pyruvate from PEP</p> Signup and view all the answers

    Is the conversion of 2-phosphoglycerate to PEP a spontaneous reaction?

    <p>No</p> Signup and view all the answers

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