Metabolism and Nutrition Chapter 24.1 Quiz
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Questions and Answers

What is the main purpose of the catabolic reactions described in the passage?

  • To produce larger molecules by using energy from catabolism
  • To break down molecules (food) to release energy (correct)
  • To facilitate the electron transport chain in the mitochondria
  • To regulate hormone levels in the body

    • What is the primary function of the Krebs cycle (also known as the citric acid cycle or tricarboxylic cycle) described in the passage?

  • To produce NADH and FADH2 for the electron transport chain
  • To generate ATP through the oxidation of glucose
  • To convert pyruvate into acetyl CoA (correct)
  • To facilitate gluconeogenesis in the liver

    • According to the passage, what is the main purpose of the electron transport chain (ETC)?

  • To facilitate the breakdown of glucose into pyruvate
  • To produce heat for thermoregulation in the body
  • To regulate the activity of enzymes in the Krebs cycle
  • To convert NADH and FADH2 into ATP (correct)

    • What is the primary function of gluconeogenesis as described in the passage?

    <p>To convert non-carbohydrate precursors into glucose</p> Signup and view all the answers

    According to the passage, what is the main purpose of the anabolic reactions described?

    <p>To produce larger molecules by using energy from catabolism</p> Signup and view all the answers

    Which hormone is described in the passage as being catabolic?

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

    What is the main role of ATP as described in the passage?

    <p>To act as the energy currency of the body</p> Signup and view all the answers

    What is the primary purpose of the Krebs cycle in the production of ATP according to the passage?

    <p>To generate high-energy molecules like ATP, NADH, and FADH2</p> Signup and view all the answers

    What is the primary purpose of the oxidation-reduction (redox) reactions described in the passage?

    <p>To transfer electrons between molecules to release energy</p> Signup and view all the answers

    According to the passage, what is the primary function of the electron transport chain (ETC) in the production of ATP?

    <p>To convert NADH and FADH2 into ATP</p> Signup and view all the answers

    What is the main method of heat transfer responsible for 60% of the heat loss during ATP production?

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

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

    <p>Sleeping position</p> Signup and view all the answers

    Which compound is NOT considered a vitamin?

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

    What is the main contributing factor to weight gain or loss according to the text?

    <p>Caloric intake exceeding output</p> Signup and view all the answers

    What is the primary method of transferring heat by contact, responsible for losing 3% of heat?

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

    Which energy nutrient requires the most energy for breakdown according to the text?

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

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