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Nucleotide Biosynthesis
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Nucleotide Biosynthesis

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Questions and Answers

Which type of nucleotide biosynthetic pathway is almost identical in all organisms?

  • De novo pathway (correct)
  • Salvage pathway
  • Neither de novo nor salvage pathways
  • Both de novo and salvage pathways

    • From where do most organisms synthesize nucleotides in the salvage pathway?

  • Carbamoyl phosphate synthase II
  • Nucleosides or bases from diet or degradation of nucleic acids (correct)
  • Extracellular hydrolysis of ingested nucleic acids
  • Low molecular weight precursors

    • Which enzyme is involved in the de novo pathway of purine nucleotides?

  • Carbamoyl phosphate synthase II
  • OMP decarboxylase
  • ATCase (correct)
  • Dihydroorotase

    • Which enzyme is involved in the pyrimidine biosynthesis pathway?

    <p>OMP decarboxylase</p> Signup and view all the answers

    Which route represents the major way by which bases become available in animals?

    <p>Extracellular hydrolysis of ingested nucleic acids</p> Signup and view all the answers

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