Cellular Respiration: Citric Acid Cycle and Oxidative Phosphorylation
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Questions and Answers

What are proteins hydrolyzed to during the first stage of food breakdown?

  • Amino acids (correct)
  • Glucose
  • Monosaccharides
  • Fatty acids

    • What is the process in which large molecules in food are broken down into smaller units?

  • Digestion (correct)
  • Assimilation
  • Absorption
  • Metabolism

    • Which of the following is produced when polysaccharides are hydrolyzed during food breakdown?

  • Monosaccharides
  • Amino acids
  • Fatty acids
  • Glucose (correct)

    • At which stage of food breakdown is no useful energy captured?

    <p>First stage (digestion)</p> Signup and view all the answers

    What is the primary role of acetyl CoA in metabolism?

    <p>Serving as the main fuel for the final stages of aerobic metabolism</p> Signup and view all the answers

    Which small molecules are converted into acetyl CoA during food breakdown?

    <p>Sugars, fatty acids, glycerol, and several amino acids</p> Signup and view all the answers

    In which stage of food breakdown is a small amount of ATP generated?

    <p>Second stage</p> Signup and view all the answers

    What role do simple units play in metabolism?

    <p>They play a central role in metabolism</p> Signup and view all the answers

    What is the final common pathway in the oxidation of fuel molecules?

    <p>Citric acid cycle</p> Signup and view all the answers

    Which process brings the breakdown products of proteins, sugars, and fats into the citric acid cycle?

    <p>Acetyl CoA formation</p> Signup and view all the answers

    What is the primary source of acetyl CoA during food breakdown?

    <p>Fatty acids</p> Signup and view all the answers

    Where does ATP production from the complete oxidation of acetyl CoA occur?

    <p>Mitochondrial matrix</p> Signup and view all the answers

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