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date: 14 July 2024

14. p. 477Nitrogen Metabolism I: Synthesislocked

14. p. 477Nitrogen Metabolism I: Synthesislocked

  • Trudy McKee
  •  and James R. McKee


This chapter talks about nitrogen, which is found in a vast array of biomolecules, such as amino acids and the nitrogenous bases which are used in the synthesis of proteins and the nucleic acids. Other essential nitrogen-containing biomolecules include the porphyrins, certain membrane lipids, and a diverse group of metabolically important biomolecules that are synthesized in smaller amounts. The chapter traces nitrogen from nitrogen fixation, the process that converts inert N2 to biologically useful ammonia through the synthesis of the major nitrogen-containing biomolecules. It describes the nitrogen cycle as the biogeochemical cycle in which nitrogen atoms flow through the biosphere. Several biochemical processes convert nitrogen from one form to another.

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