organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic processorganic substance metabolic process nitrogen compound metabolic processnitrogen compound metabolic process cellular metabolic processcellular metabolic process primary metabolic processprimary metabolic process cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cell protein-containing complex organelle cellcell protein-containing complexprotein-containing complex organelleorganelle