metabolic process cellular nitrogen compound metabolic process Reactome:REACT_102000 Reactome:REACT_103710 Reactome:REACT_107293 Reactome:REACT_108179 Reactome:REACT_109042 Reactome:REACT_13 Reactome:REACT_28699 Reactome:REACT_29108 Reactome:REACT_32429 Reactome:REACT_33347 Reactome:REACT_34326 Reactome:REACT_55564 Reactome:REACT_77741 Reactome:REACT_82379 Reactome:REACT_86268 Reactome:REACT_90299 Reactome:REACT_91959 Reactome:REACT_93580 Reactome:REACT_95666 Reactome:REACT_98086 Reactome:REACT_99241 The chemical reactions and pathways involving various organic and inorganic nitrogenous compounds, as carried out by individual cells. cellular nitrogen compound metabolism cellular metabolic process