Test Your Knowledge on Hexokinase and Glucose Metabolism!
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Questions and Answers

What is the role of low Km hexokinase in non-hepatic tissues?

  • To deliver glucose to the blood
  • To catalyze the first irreversible step of glycolysis
  • To trap blood glucose within their cells (correct)
  • To buffer blood glucose

    • What is the role of high Km glucokinase in the liver?

  • To deliver glucose to the blood
  • To trap blood glucose within their cells
  • To catalyze the first irreversible step of glycolysis
  • To buffer blood glucose (correct)

    • What is the first irreversible step of glycolysis?

  • Conversion of F-1,6-BP to DHAP and GAP
  • Conversion of PEP to pyruvate
  • Conversion of glucose to glucose 6 phosphate (correct)
  • Conversion of F6P to F-1,6-BP

    • What is the role of PFK-1 in glycolysis?

    <p>To catalyze the rate-limiting step of glycolysis</p> Signup and view all the answers

    What is the enzyme that catalyzes the conversion of F6P to F-1,6-BP?

    <p>PFK-1</p> Signup and view all the answers

    How many irreversible steps are there in glycolysis?

    <p>3</p> Signup and view all the answers

    What is the role of the first ATP utilized in glycolysis?

    <p>To convert glucose to glucose 6 phosphate</p> Signup and view all the answers

    What is the enzyme that catalyzes the conversion of PEP to pyruvate?

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

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