Agents and Fuel Sources in Cellular Respiration
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Questions and Answers

What is the role of Complex IV in the Electron Transport Chain (ETC)?

  • Inhibiting fatty acid oxidation
  • Producing ATP through oxidative phosphorylation (correct)
  • Stimulating ketone body production
  • Promoting glycolysis
  • During starvation, which of the following fuel sources does the liver primarily use to maintain blood glucose levels?

  • Ketone bodies
  • Amino acids (correct)
  • Fatty acids
  • Glucose
  • What is the primary product generated by exercising muscle that can be converted to glucose by the liver?

  • Ketone bodies
  • Fatty acids
  • Glucose
  • Lactate (correct)
  • Where does the movement of NADH from the cytoplasm into the mitochondrial matrix occur?

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

    Which pathway involves the conversion of pyruvate to glucose?

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

    What is the main purpose of glycolysis?

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

    In which physiological state are ketone bodies primarily produced?

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

    Which of the following amino acids is both ketogenic and glucogenic?

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

    Which enzyme deficiency leads to Von Gierke disease?

    <p>Glucose-6-phosphatase</p> Signup and view all the answers

    Which glycogen storage disease is also known as Cori disease?

    <p>Type IIIa</p> Signup and view all the answers

    Which compound is derived from the amino acid Tyrosine?

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

    In which tissues is GLUT4 primarily found?

    <p>Heart and skeletal muscle</p> Signup and view all the answers

    Which enzyme catalyzes the conversion of glucose-6-phosphate to fructose-6-phosphate in glycolysis?

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

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