Metabolism and Nutrition: Overview of Metabolic Reactions Quiz
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Questions and Answers

What percentage of the energy used during ATP production is released as heat?

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

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

  • Radiation (correct)
  • Evaporation
  • Conduction
  • Convection

    • What percentage of the body's total energy expenditure is used for thermoregulation?

  • 5%
  • 15%
  • 20%
  • 10% (correct)

    • Which of the following vitamins is water-soluble?

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

    Which macronutrient requires the most energy to break down?

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

    What is the relationship between energy consumed and energy expended in terms of weight gain or loss?

    <p>Energy consumed minus energy expended equals weight gain or loss, and 1 pound of fat is equal to 3,500 calories. (C)</p> Signup and view all the answers

    In the body, which hormone is primarily catabolic?

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

    Which metabolic state involves digestion and absorption of food where catabolism is less than anabolism?

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

    What happens in gluconeogenesis?

    <p>Synthesis of glucose from non-carbohydrate sources (C)</p> Signup and view all the answers

    Which molecule becomes the primary energy source after several days of starvation?

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

    What is the main function of the Krebs Cycle in metabolism?

    <p>Production of NADH and FADH2 (A)</p> Signup and view all the answers

    Which hormone stimulates the release of pancreatic lipase and bile salts in lipid metabolism?

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

    What is the end result of carbohydrate metabolism in terms of energy production?

    <p>38 ATP per glucose molecule (D)</p> Signup and view all the answers

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