Bioenergetics Quiz
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Questions and Answers

Which molecule is commonly used as an energy source in biological reactions?

  • ATP (correct)
  • AMP
  • ADP
  • ADP-ribose
  • What is the overall process of coupling exergonic and endergonic reactions in biology called?

  • Thermodynamic coupling
  • Energy coupling (correct)
  • Chemical coupling
  • Metabolic coupling
  • Which type of reactions are thermodynamically unfavorable and require energy input?

  • Exergonic reactions
  • Endergonic reactions (correct)
  • Catabolic reactions
  • Redox reactions
  • What is the sum of the change in Gibbs free energy ((\Delta G)) for a coupled exergonic and endergonic reaction?

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

    What is the role of ATP in driving biological reactions?

    <p>To store and transfer energy</p> Signup and view all the answers

    Which molecule is commonly used as an energy source in biological reactions?

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

    What is the overall process of coupling exergonic and endergonic reactions in biology called?

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

    What is the sum of the change in Gibbs free energy ((\Delta G)) for a coupled exergonic and endergonic reaction?

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

    Which type of reactions are thermodynamically unfavorable and require energy input?

    <p>Endergonic reactions</p> Signup and view all the answers

    What is the role of ATP in driving biological reactions?

    <p>To store and transfer energy</p> Signup and view all the answers

    Study Notes

    Energy Sources and Reactions

    • ATP (adenosine triphosphate) is the primary energy currency molecule utilized in biological reactions.
    • Endergonic reactions are thermodynamically unfavorable and require energy input to proceed.
    • Exergonic reactions release energy, making them thermodynamically favorable.
    • Coupling is the process of linking an exergonic reaction with an endergonic reaction to drive the endergonic reaction forward.
    • The sum of the change in Gibbs free energy ((\Delta G)) for a coupled exergonic and endergonic reaction is zero. This means that the energy released by the exergonic reaction is used to drive the endergonic reaction.
    • ATP plays a crucial role in driving biological reactions by providing the energy needed for endergonic processes like muscle contraction, protein synthesis, and active transport.

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    Description

    Test your knowledge on high energy molecules and their role in bioenergetics. This quiz will assess your understanding of ATP hydrolysis, the advantages of ATP as an energy source, the action of other important high energy molecules, and electron flow in biological oxidation-reduction.

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