Metabolism and Nutrition Chapter 24.1 Quiz
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Questions and Answers

What percentage of the energy used during ATP production is converted into heat?

  • 10%
  • 70%
  • 60% (correct)
  • 20%

    • What is the thermoneutral temperature for a naked human?

  • 90 degrees
  • 80 degrees
  • 70 degrees
  • 84 degrees (correct)

    • Which mode of heat transfer accounts for the largest percentage of heat loss from the body?

  • Convection
  • Conduction
  • Evaporation
  • Radiation (correct)

    • What percentage of the body's energy expenditure is attributed to thermoregulation?

    <p>10%</p> Signup and view all the answers

    Which macronutrient requires the most energy to break down?

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

    Which of the following is a water-soluble vitamin?

    <p>Vitamin B</p> Signup and view all the answers

    Which of the following best describes the role of ATP in metabolic reactions?

    <p>ATP is produced during catabolic reactions and consumed during anabolic reactions.</p> Signup and view all the answers

    What is the primary fate of pyruvate molecules produced during glycolysis under aerobic conditions?

    <p>Pyruvate enters the Krebs cycle after being converted to acetyl CoA.</p> Signup and view all the answers

    Which of the following is NOT a direct product of the Krebs cycle?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is the primary role of the electron transport chain (ETC) in cellular respiration?

    <p>To generate ATP through the process of oxidative phosphorylation.</p> Signup and view all the answers

    Which of the following hormones is primarily involved in promoting catabolic reactions?

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

    In the process of gluconeogenesis, which of the following molecules can be used as a precursor for glucose synthesis?

    <p>All of the above</p> Signup and view all the answers

    Which of the following statements about redox reactions is NOT true?

    <p>Redox reactions always involve the formation of ATP.</p> Signup and view all the answers

    During aerobic respiration, what is the primary role of oxygen $O_2$?

    <p>To act as the final electron acceptor in the electron transport chain.</p> Signup and view all the answers

    Which of the following statements about glycolysis is true?

    <p>Glycolysis can occur in the absence of oxygen.</p> Signup and view all the answers

    Which of the following is NOT a product of the Krebs cycle?

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

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