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

Which of the following is NOT a catabolic hormone?

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

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

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

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

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

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

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

Which nutrient requires the most energy to break down?

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

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

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

What is the primary function of the hypothalamus in thermoregulation?

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

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

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

What type of reaction involves gaining an electron?

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

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

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

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

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

Which process converts excess acetyl CoA into ketone bodies?

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

What is the final electron receptor in aerobic respiration?

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

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