Metabolism and Nutrition Overview Quiz
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Questions and Answers

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

  • 20%
  • 60% (correct)
  • 40%
  • 10%

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

  • Evaporation
  • Conduction
  • Radiation (correct)
  • Convection

    • What percentage of a person's basal metabolic rate (BMR) is attributed to physical activity?

  • 10%
  • 20% (correct)
  • 30%
  • 40%

    • Which of the following vitamins is not water-soluble?

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

    What is the caloric equivalent of 1 pound of fat?

    <p>3500 calories</p> Signup and view all the answers

    Which macronutrient requires the most energy to break down in the body?

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

    Which of the following statements about catabolic reactions is incorrect?

    <p>The remaining energy is primarily used for anabolic reactions.</p> Signup and view all the answers

    Which of the following is not a product of glycolysis?

    <p>2 FADH$_2$ molecules</p> Signup and view all the answers

    In the Krebs cycle, what is the primary role of oxaloacetate?

    <p>To combine with acetyl CoA to initiate the cycle.</p> Signup and view all the answers

    Which of the following statements about the electron transport chain is incorrect?

    <p>It is the primary source of ATP production in aerobic respiration.</p> Signup and view all the answers

    What is the primary function of ketone bodies in the body?

    <p>To serve as an alternative fuel source when glucose is scarce.</p> Signup and view all the answers

    In the urea cycle, what is the primary role of the ammonium ion?

    <p>To combine with carbon dioxide to form urea and water.</p> Signup and view all the answers

    During the absorptive state, which of the following hormones plays a primary role?

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

    Which of the following is not a characteristic of the starvation state?

    <p>Glycogen stores are replenished from dietary carbohydrates.</p> Signup and view all the answers

    Which of the following is not a function of cholecystokinin (CCK)?

    <p>Facilitating the absorption of lipids in the small intestine.</p> Signup and view all the answers

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

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

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