Chapter 16 & 17 Quiz
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Questions and Answers

Which molecule is produced during glycolysis?

  • Dihydroxyacetone phosphate
  • Glucose
  • ATP
  • Pyruvate (correct)
  • What is the primary function of glycolysis?

  • Production of glucose
  • Conversion of pyruvate
  • Generation of ATP (correct)
  • Building blocks for biosynthesis
  • What are the byproducts of glycolysis used for?

  • Biosynthesis (correct)
  • Energy production
  • Conversion of glucose
  • ATP generation
  • What is the first stage of glycolysis?

    <p>Conversion of glucose into Glyceraldehyde 3-phosphate</p> Signup and view all the answers

    How many molecules of pyruvate are produced during glycolysis?

    <p>2</p> Signup and view all the answers

    What is the end product of glycolysis?

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

    What is the function of ATP in glycolysis?

    <p>Generation of ATP</p> Signup and view all the answers

    What are the building blocks provided by the byproducts of glycolysis used for?

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

    What are the two molecules that can be produced during the conversion of glucose in the first stage of glycolysis?

    <p>Glyceraldehyde 3-phosphate and Dihydroxyacetone phosphate</p> Signup and view all the answers

    What is the main purpose of glycolysis?

    <p>Energy production</p> Signup and view all the answers

    Which of the following is an irreversible reaction in glycolysis?

    <p>Conversion of glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate</p> Signup and view all the answers

    What is the net ATP production per glucose molecule in glycolysis?

    <p>+2 ATP</p> Signup and view all the answers

    Which enzyme in glycolysis is inhibited by its product, glucose 6-phosphate?

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

    What is the main site of gluconeogenesis?

    <p>Liver cells</p> Signup and view all the answers

    Which of the following is an energetically favorable reaction in gluconeogenesis?

    <p>Conversion of pyruvate to oxaloacetate</p> Signup and view all the answers

    What is the reciprocal regulation between glycolysis and gluconeogenesis?

    <p>When glucose is abundant, glycolysis is active. When glucose is scarce, gluconeogenesis is active.</p> Signup and view all the answers

    What is the role of lactate in contracting skeletal muscle?

    <p>It generates ATP in the absence of oxygen.</p> Signup and view all the answers

    Which enzyme in liver cells converts some fructose 6-phosphate into fructose 2,6-bisphosphate, a potent activator of phosphofructokinase 1 (PFK1)?

    <p>Phosphofructokinase 2 (PFK2)</p> Signup and view all the answers

    What is the function of the second pyruvate kinase isozyme in liver cells?

    <p>It converts pyruvate to acetyl CoA.</p> Signup and view all the answers

    What is the purpose of the conversion of pyruvate to acetyl CoA in the liver?

    <p>To synthesize glucose</p> Signup and view all the answers

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