Cellular Respiration Phase 2
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Questions and Answers

Which enzyme catalyzes the phosphorylation of glucose to glucose-6-phosphate in the first step of glycolysis?

  • Glucose-6-phosphatase
  • Fructose-1,6-bisphosphatase
  • Phosphofructokinase
  • Hexokinase (correct)
  • What is the net gain of ATP molecules per molecule of glucose during the second phase of glycolysis?

  • 8
  • 4
  • 6
  • 2 (correct)
  • What is the end product of glycolysis?

  • Citrate
  • Acetyl-CoA
  • Pyruvate (correct)
  • Lactate
  • What is the purpose of phosphorylating glucose in the first step of glycolysis?

    <p>To activate glucose for further metabolism</p> Signup and view all the answers

    What is the function of hexokinases in the first step of glycolysis?

    <p>To catalyze the phosphorylation of glucose to glucose-6-phosphate</p> Signup and view all the answers

    What is the gain of NADH molecules during the second phase of glycolysis?

    <p>4</p> Signup and view all the answers

    What is the purpose of converting two molecules of glyceraldehyde-3-phosphate during the second phase of glycolysis?

    <p>To produce pyruvate</p> Signup and view all the answers

    What is the purpose of gaining 4 ATP molecules during the second phase of glycolysis?

    <p>To produce energy</p> Signup and view all the answers

    What is the purpose of phosphorylating glucose in the first step of glycolysis?

    <p>To activate glucose into a form that can be further metabolized</p> Signup and view all the answers

    What is the function of tissue-specific isoenzymes - hexokinases in the first step of glycolysis?

    <p>To convert glucose into an anion that can not be transported out of the cell</p> Signup and view all the answers

    What is the net gain of NADH molecules per molecule of glucose during the second phase of glycolysis?

    <p>4</p> Signup and view all the answers

    What is the end product of glycolysis?

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

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