Metabolism and Nutrition Chapter 24 Quiz
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

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

  • To produce ATP, the energy currency of the body
  • To produce larger molecules by using energy from catabolism
  • To break down molecules (food) to release energy (correct)
  • To store energy in the form of glycogen and fat

    • Which of the following is NOT a product of the glycolysis process described in the passage?

  • 2 FADH2 molecules (correct)
  • 2 pyruvate molecules
  • 2 NADH molecules
  • 2 ATP

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

  • To produce 3 high-energy molecules (ATP, NADH, FADH2) (correct)
  • To transfer electrons through the electron transport chain
  • To convert glucose into glycogen for storage
  • To convert pyruvate into acetyl CoA

    • What is the primary purpose of the electron transport chain (ETC) described in the passage?

    <p>To transfer electrons from NADH and FADH2 to oxygen</p> Signup and view all the answers

    What is the primary purpose of gluconeogenesis as described in the passage?

    <p>To convert pyruvate, lactate, glycerol, alanine, or glutamine into glucose</p> Signup and view all the answers

    What is the primary role of cholecystokinin (CCK) in lipid metabolism as described in the passage?

    <p>To stimulate the release of pancreatic lipase and bile salts</p> Signup and view all the answers

    What is the primary difference between the absorptive state and the postabsorptive state described in the passage?

    <p>In the absorptive state, glucose is stored as glycogen, while in the postabsorptive state, glycogen is broken down.</p> Signup and view all the answers

    What is the primary function of thermoregulation as described in the passage?

    <p>To maintain a constant body temperature through a negative feedback loop</p> Signup and view all the answers

    Which of the following is NOT a catabolic hormone mentioned in the passage?

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

    What is the primary purpose of the energy released from the chemical bonds during catabolic reactions as described in the passage?

    <p>To convert ADP and inorganic phosphate into ATP</p> Signup and view all the answers

    What percentage of energy used during ATP production creates heat?

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

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

    <p>84 degrees Fahrenheit</p> Signup and view all the answers

    What percentage of heat is lost through convection?

    <p>15%</p> Signup and view all the answers

    Which of the following is NOT a way in which heat is transferred, according to the text?

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

    What percentage of energy is expended on physical activity, according to the text?

    <p>20%</p> Signup and view all the answers

    How many calories are equivalent to 1 pound of fat?

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

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser