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

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

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

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

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

What happens in lipolysis?

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

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

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

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

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

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

<p>Ketone bodies (D)</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 (C)</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 (A)</p> Signup and view all the answers
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