Cellular Energy Metabolism: ATP and Energy Transfer
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Questions and Answers

What is the immediate source of energy for muscle contraction?

  • Glycolysis
  • ATP (correct)
  • Anaerobic Metabolism
  • Oxidative Phosphorylation

    • What percentage of energy usage does protein account for during prolonged exercise?

  • 5%
  • 20%
  • 15%
  • 10% (correct)

    • What is the term for the production of ATP using oxygen as the final electron acceptor?

  • Aerobic Metabolism (correct)
  • Anaerobic Metabolism
  • Oxidative Phosphorylation
  • Glycolysis

    • What are the two anaerobic metabolic pathways that produce ATP without oxygen?

    <p>ATP-PC system and Glycolysis</p> Signup and view all the answers

    What is the enzyme responsible for degrading ATP?

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

    What is the source of energy that originates from the sun?

    <p>Solar Energy</p> Signup and view all the answers

    What is the primary function of ATP in the living cell?

    <p>To facilitate the transfer of free energy from exergonic to endergonic processes</p> Signup and view all the answers

    What is the approximate rate of ATP turnover in humans?

    <p>Equal to the body weight every 24 hours</p> Signup and view all the answers

    What is the primary source of energy for muscle contraction?

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

    What is the duration of maximum muscle power provided by the phosphagen system?

    <p>8-10 seconds</p> Signup and view all the answers

    What is the name of the metabolic system that involves the breakdown of glucose to produce ATP?

    <p>Glycogen lactic acid system</p> Signup and view all the answers

    What is the type of bond that attaches the last two phosphate radicals to the ATP molecule?

    <p>High-energy phosphate bond</p> Signup and view all the answers

    What is the primary source of energy for human beings?

    <p>Plants and other animals</p> Signup and view all the answers

    What is the purpose of metabolic respiration?

    <p>To supply energy for biological processes</p> Signup and view all the answers

    What is the byproduct of food breakdown in the presence of oxygen?

    <p>Carbon dioxide and water</p> Signup and view all the answers

    What is the role of ATP in the human body?

    <p>To facilitate muscle contraction and nerve conduction</p> Signup and view all the answers

    What is the process by which green plants manufacture their own food?

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

    What are the three components of ATP?

    <p>Adenine, ribose, and phosphates</p> Signup and view all the answers

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