Biochemistry: Glycolysis Quiz
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Questions and Answers

Which of the following steps in glycolysis is considered the rate-limiting step?

  • Fructose-6-Phosphate to Fructose-1,6-bisphosphate (correct)
  • Phosphoenolpyruvate to Pyruvate
  • Glyceraldehyde-3-Phosphate to 1,3-Bisphosphoglycerate
  • Glucose to Glucose-6-Phosphate
  • Which of the following is the only step in glycolysis that utilizes inorganic phosphate?

  • Glucose to Glucose-6-Phosphate
  • Fructose-6-Phosphate to Fructose-1,6-bisphosphate
  • Glyceraldehyde-3-Phosphate to 1,3-Bisphosphoglycerate (correct)
  • 3-Phosphoglycerate to 2-Phosphoglycerate
  • Which of the following enzymes is inhibited by fluoride?

  • Hexokinase
  • Phosphofructokinase-1
  • Pyruvate Kinase
  • Enolase (correct)
  • Which of the following is the only reversible kinase in glycolysis?

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

    Which of the following statements regarding anaerobic glycolysis in red blood cells (RBCs) is TRUE?

    <p>Anaerobic glycolysis produces a net gain of 2 ATP per glucose molecule, which is sufficient for RBC function. (C)</p> Signup and view all the answers

    Flashcards

    Glycolysis site/organelle

    Glycolysis occurs in the cytoplasm of cells.

    Irreversible steps of Glycolysis

    Three irreversible steps involve hexokinase, phosphofructokinase, and pyruvate kinase.

    Rate limiting step of Glycolysis

    Phosphofructokinase is the rate limiting enzyme for glycolysis.

    Substrate level phosphorylation

    Substrate level phosphorylation occurs during glycolysis and at specific steps, notably with ADP and high-energy phosphate groups.

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    Anaerobic glycolysis in RBC

    RBCs rely on anaerobic glycolysis for energy because they lack mitochondria.

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