Metabolism
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Questions and Answers

Which type of reaction releases energy from the system?

  • Endergonic reaction
  • Exergonic reaction (correct)
  • Energetic coupling
  • DNA polymerization
  • What is the main function of DNA polymerase?

  • To catalyze the formation of new phosphodiester bonds (correct)
  • To break down DNA into individual nucleotides
  • To drive endergonic reactions
  • To store energy in the cell
  • What are the ingredients of ATP?

  • Nitrogenous base, sugar, and three phosphate groups (correct)
  • Nitrogenous base, sugar, and one phosphate group
  • Nitrogenous base, sugar, and two phosphate groups
  • Nitrogenous base, sugar, and four phosphate groups
  • How much energy is released for each mole of ATP hydrolyzed with water?

    <p>7.3 kcal</p> Signup and view all the answers

    What is the process called when photosynthesis and/or respiration provide the energy required to synthesize ATP?

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

    What is the main function of ATP hydrolysis in the cell?

    <p>To provide energy to drive endergonic reactions</p> Signup and view all the answers

    What type of organisms use light energy, carbon, and water to produce organic molecules through photosynthesis?

    <p>Photoautotrophic producers</p> Signup and view all the answers

    What is the main function of NAD+/NADH in cellular respiration?

    <p>To function as an energy and electron carrier</p> Signup and view all the answers

    What are the products of aerobic respiration of glucose?

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

    What is the main function of oxidation and reduction in living systems?

    <p>The transferring of electrons between molecules</p> Signup and view all the answers

    Study Notes

    Energy and ATP

    • Exergonic reactions are a type of reaction that releases energy from the system.

    DNA Replication

    • The main function of DNA polymerase is to synthesize new DNA strands by adding nucleotides to a template.

    ATP Structure

    • ATP (Adenosine Triphosphate) is composed of adenine, ribose, and three phosphate groups.

    ATP Hydrolysis

    • Hydrolysis of ATP with water releases 30.5 kJ of energy per mole of ATP.

    Energy Production

    • The process by which photosynthesis and/or respiration provide the energy required to synthesize ATP is called energy coupling.

    ATP Function

    • The main function of ATP hydrolysis in the cell is to provide energy for various cellular processes.

    Photosynthesis

    • Photoautotrophs are organisms that use light energy, carbon, and water to produce organic molecules through photosynthesis.

    Electron Carriers

    • The main function of NAD+/NADH in cellular respiration is to facilitate electron transport and generate ATP.

    Aerobic Respiration

    • The products of aerobic respiration of glucose are carbon dioxide, water, and ATP.

    Redox Reactions

    • The main function of oxidation and reduction in living systems is to facilitate energy transfer and storage.

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    Description

    Test your knowledge on metabolism and DNA polymerization with this quiz. Learn about exergonic and endergonic reactions, Gibbs free energy, and energetic coupling. Understand the process of DNA polymerization and the structure of DNA.

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