Metabolism and Catabolism Quiz
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Metabolism and Catabolism Quiz

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Questions and Answers

What is the primary function of catabolism?

  • To release heat from the body
  • To store excess energy as glycogen or fat
  • To break down large molecules for energy (correct)
  • To synthesize small molecules into larger ones

    • What happens to the energy released during catabolism?

  • It is used entirely for anabolic reactions
  • All of it is released as heat
  • All of it is stored as ATP
  • A portion is transferred to ATP, and the rest is released as heat (correct)

    • What is the primary function of anabolism?

  • To synthesize small molecules into larger ones (correct)
  • To break down large molecules for energy
  • To release heat from the body
  • To store excess energy as glycogen or fat

    • What is the primary storage form of carbohydrates in the body?

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

    Which of the following is NOT a catabolic hormone?

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

    What is the primary storage form of fats (lipids) in the body?

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

    What is the primary reason for the body to enter the starvation state?

    <p>To conserve amino acids for protein synthesis</p> Signup and view all the answers

    What percentage of energy production is in the form of heat to maintain body temperature?

    <p>60%</p> Signup and view all the answers

    What is the primary mechanism by which the body loses heat through evaporation?

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

    Which of the following is the primary role of the urea cycle?

    <p>To remove nitrogen from the body</p> Signup and view all the answers

    Which nutrient requires the most energy to break down?

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

    What is the primary function of lipogenesis?

    <p>To convert excess acetyl CoA into fatty acids and other lipids</p> Signup and view all the answers

    Which state does the body enter when fasting or skipping meals?

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

    What is the primary function of the hypothalamus in thermoregulation?

    <p>Both a and b</p> Signup and view all the answers

    What is the primary reason for the increase in insulin during the absorptive state?

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

    What is the primary role of vitamins in the body?

    <p>To act as organic compounds important for biochemical reactions</p> Signup and view all the answers

    What is the main function of anabolic hormones in the body?

    <p>Facilitate growth and tissue repair</p> Signup and view all the answers

    What type of reaction involves gaining an electron?

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

    Which of the following is NOT a common simple sugar (monosaccharide)?

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

    In the absence of oxygen, what does pyruvate get converted into in humans?

    <p>Lactic acid</p> Signup and view all the answers

    Which process converts excess acetyl CoA into ketone bodies?

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

    What is the final electron receptor in aerobic respiration?

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

    What is the role of ATP synthase in cellular respiration?

    <p>Convert ADP into ATP using a proton gradient</p> Signup and view all the answers

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