Metabolism and Nutrition: Overview of Metabolic Reactions
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Questions and Answers

What percentage of the energy used during ATP production creates heat?

  • 50%
  • 60% (correct)
  • 70%
  • 40%

At what temperature is a naked human comfortable (thermoneutral)?

  • 84 degrees (correct)
  • 90 degrees
  • 72 degrees
  • 78 degrees

What percentage of heat is lost through radiation?

  • 20%
  • 15%
  • 60% (correct)
  • 3%

Which of the following is NOT a factor contributing to the Basal Metabolic Rate (BMR)?

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

How many calories are equivalent to one pound of fat?

<p>3500 calories (C)</p> Signup and view all the answers

Which of the following vitamins are fat-soluble?

<p>Vitamins A, D, E, and K (B)</p> Signup and view all the answers

What is the primary role of catabolic reactions?

<p>Breaking down molecules to release energy (C)</p> Signup and view all the answers

What is the energy currency of the body?

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

During glycolysis, how many ATP molecules are produced from one glucose molecule?

<p>4 ATP (B)</p> Signup and view all the answers

What is the primary function of the Krebs cycle?

<p>Breaking down citric acid to produce energy (A)</p> Signup and view all the answers

What is the primary role of the electron transport chain (ETC)?

<p>Producing ATP from NADH and FADH2 (A)</p> Signup and view all the answers

Which of the following is involved in gluconeogenesis?

<p>Producing glucose from non-carbohydrate sources (B)</p> Signup and view all the answers

What is the primary function of thermoregulation?

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

Which hormone is considered anabolic?

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

What is the end product of anaerobic glycolysis?

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

What is the primary role of redox reactions in cellular respiration?

<p>Transferring electrons between molecules (A)</p> Signup and view all the answers

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