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 (A)</p> Signup and view all the answers

Which pathway involves the conversion of pyruvate to glucose?

<p>Gluconeogenesis (A)</p> Signup and view all the answers

What is the main purpose of glycolysis?

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

In which physiological state are ketone bodies primarily produced?

<p>Starvation (C)</p> Signup and view all the answers

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

<p>Methionine (A)</p> Signup and view all the answers

Which enzyme deficiency leads to Von Gierke disease?

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

Which glycogen storage disease is also known as Cori disease?

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

Which compound is derived from the amino acid Tyrosine?

<p>Epinephrine (A)</p> Signup and view all the answers

In which tissues is GLUT4 primarily found?

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

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

<p>Hexokinase (B)</p> Signup and view all the answers

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