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

What is the enzyme responsible for degrading ATP?

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

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

<p>Solar Energy (B)</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 (C)</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 (C)</p> Signup and view all the answers

What is the primary source of energy for muscle contraction?

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

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

<p>8-10 seconds (C)</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 (B)</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 (B)</p> Signup and view all the answers

What is the primary source of energy for human beings?

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

What is the purpose of metabolic respiration?

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

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

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

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

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

What are the three components of ATP?

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

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