Metabolism and Nutrition: Overview of Metabolic Reactions
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Questions and Answers

What is the primary method of transferring heat via infrared waves?

  • Radiation (correct)
  • Conduction
  • Convection
  • Evaporation
  • Which nutrient category requires the most energy to break down?

  • Minerals
  • Vitamins
  • Proteins (correct)
  • Carbohydrates
  • What percentage of heat is lost through convection?

  • 70%
  • 3%
  • 20%
  • 15% (correct)
  • Which vitamin category includes vitamins A, D, E, and K?

    <p>Fat soluble</p> Signup and view all the answers

    What is the primary method of transferring heat by evaporating water?

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

    What is the main component of energy expenditure at rest, in a neutral environment, and in the postabsorptive state?

    <p>Basal Metabolic Rate (BMR)</p> Signup and view all the answers

    Which macronutrient is broken down to form glucose, the most common fuel for ATP production?

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

    What happens in lipolysis?

    <p>Triglycerides are broken down into fatty acids and glycerol</p> Signup and view all the answers

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

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

    What is the function of NADH and FADH2 in metabolism?

    <p>Pass electrons to the electron transport chain for more ATP production</p> Signup and view all the answers

    Which metabolic state is characterized by glycogen breakdown after food has been stored?

    <p>Postabsorptive state</p> Signup and view all the answers

    What happens during gluconeogenesis?

    <p>Glucose is made in the liver from various molecules like pyruvate or lactate</p> Signup and view all the answers

    'Electron donors' in the electron transport chain refer to molecules that:

    <p>Pass electrons to NADH and FADH2</p> Signup and view all the answers

    What is the primary energy source in the body after several days of starvation?

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

    Which hormone causes glucose to be stored and stimulates protein synthesis in the body's absorptive state?

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

    What is the function of acetyl CoA in the Krebs cycle?

    <p>Combines with oxaloacetate to form citric acid</p> Signup and view all the answers

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