Biochemistry Quiz: Reactions and Pathways
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Questions and Answers

What characterizes an endothermic reaction?

  • It has a potential energy barrier.
  • It absorbs energy. (correct)
  • It releases energy.
  • It involves oxidation.

    • Which of the following represents a correct statement regarding enzyme regulation?

  • Enzyme saturation occurs at minimum substrate concentrations.
  • Phosphorylation always deactivates enzymes.
  • Competitive inhibition occurs when a competitor prevents substrate from entering the active site. (correct)
  • Allosteric inhibitors increase enzyme activity.

    • Which type of energy is characterized by energy stored in chemical bonds?

  • Chemical energy (correct)
  • Mechanical energy
  • Kinetic energy
  • Thermal energy

    • What role do coenzymes like NADH play in metabolic reactions?

    <p>They transfer energy through phosphate groups.</p> Signup and view all the answers

    Which is true about catabolic pathways?

    <p>They primarily break down molecules to release energy.</p> Signup and view all the answers

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