Hexokinase and Glucokinase in Liver Cells
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Questions and Answers

What is the role of hexokinase in the liver under normal conditions?

  • Acts at a constant rate to provide glucose 6-phosphate to meet the cell’s need (correct)
  • Facilitate lipogenesis
  • Produce glucose 6-phosphate for glycogen synthesis
  • Remove glucose from the blood following a meal

    • How does glucokinase differ from hexokinase in terms of its affinity for glucose?

  • Glucokinase has zero affinity for glucose
  • Glucokinase has the same Km as hexokinase
  • Glucokinase has higher Km than hexokinase (correct)
  • Glucokinase has lower Km than hexokinase

    • What is the primary function of glucokinase in the liver after a meal?

  • Remove excess glucose from the blood (correct)
  • Inhibit lipogenesis
  • Facilitate glycogenolysis
  • Promote glycolysis

    • Where does glucose 6-phosphate play a crucial role among the metabolic pathways mentioned in the text?

    <p>Pentose phosphate pathway</p> Signup and view all the answers

    Which enzyme is involved in both glycogenesis and lipogenesis following a meal?

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

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