Energy Production and Storage in Human Muscles
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Questions and Answers

What is the impact of a disturbance in T tubule on muscle fibers activity under load?

  • Facilitates Myosin ATPases activation
  • Increases ATP energy production
  • Impairs calcium system release & re-uptake (correct)
  • Promotes Glycogenolysis

How does an impaired calcium system release & re-uptake affect muscle fibers activity?

  • Accelerates Myosin ATPases activity
  • Enhances Glycolysis efficiency
  • Reduces ATP production (correct)
  • Boosts Phosphocreatine synthesis

Which process is reversible by rest, according to the text?

  • ATP energy consumption
  • Glycogenolysis activation
  • Phosphocreatine breakdown
  • Impaired cat system release & re-uptake (correct)

What is the primary function of Glycogenolysis in muscle fibers?

<p>Facilitate ATP energy production (C)</p> Signup and view all the answers

What is the primary role of ATP in muscle contraction?

<p>To act as an energy donor for contraction (B)</p> Signup and view all the answers

In the context of metabolic reactions, what is the significance of ATP synthesis?

<p>It converts catabolic substrates into useful energy fuels (A)</p> Signup and view all the answers

Which process involves the breakdown of glycogen to provide substrates for the resynthesis of ATP?

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

What happens to the breakdown products of carbohydrates, fats, and proteins in terms of ATP resynthesis?

<p>They provide substrates for resynthesizing ATP (C)</p> Signup and view all the answers

What is the primary function of Myosin ATPases in muscle cells?

<p>Releasing energy during the power stroke (D)</p> Signup and view all the answers

Which process involves breaking chemical bonds to release energy for the power stroke during muscle contraction?

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

What is the main purpose of Glycolysis and Glycogenolysis in the context of ATP production?

<p>Providing substrates for Myosin ATPases (D)</p> Signup and view all the answers

What is the function of Phosphocreatine in muscle cells?

<p>Facilitating regeneration of ATP from ADP during high-intensity exercise (B)</p> Signup and view all the answers

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