Metabolic Pathways Quiz
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Questions and Answers

Which enzyme catalyzes the formation of glutamate from a-ketoglutarate when ammonia concentration is high?

  • Glutamate synthase
  • Glutamate dehydrogenase (correct)
  • Transaminase
  • Glutamine synthetase
  • In which organisms is the reductive amination pathway commonly catalyzed by glutamate dehydrogenase?

  • Bacteria (correct)
  • Animals
  • Plants
  • Fungi
  • What is the main function of transaminases in the synthesis of amino acids?

  • Reduction of carbon skeletons
  • Transfer of amino group to other carbon skeletons (correct)
  • Formation of glutamate from a-ketoglutarate
  • Assimilation of inorganic nitrogen
  • Which system do many bacteria use to assimilate ammonia when its levels are low?

    <p>GS-GOGAT system</p> Signup and view all the answers

    Why can ammonia be incorporated into organic material relatively easily and directly?

    <p>It is more reduced than other forms of inorganic nitrogen</p> Signup and view all the answers

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