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METABOLIZM

metabolizmMETABOLIZM (az yun. metabole – tagyiryobi, tabaddulot), majmui reaksiyahoi khimiyavi dar hujayrahoi zinda, ki organizmro bo energiya va moddahoi baroi faoliyati hayoti, sabzishu afzoish muhim tamin menamoyand. Ba manoi vase «M.» mubodilai moddaho va energiya, ba manii sahehtar mubodilai mobayni, yane tabadduloti moddahoro dar dokhili hujayra ifoda mekunad (az lahzai ba hujayra dokhil shudani onho to hosil shudani mahsuli okhirin). Az in ru, istilohi «M.»-ro ba guruhi alohidai moddaho yo moddai muayyan (mas., M.-i safeda, M.-i glyukoza va g.) nisbat medihand.
Moddahoi gizoi dar hujayra bo ishtiroki fermentho baze tagyiroti khimiyaviro az sar meguzaronand. M. du taraf dorad: anabolizm va katabolizm. Reaksiyahoi anaboli hosil shudan va bozsozii elementhoi tarkibi hujayra va boftahoro tamin mesozand. In reaksiyaho aksaran barqarorsoz buda, bo sarf kardani energiyai khimiyavii ozod (reaksiyahoi endergoni) surat megirand. Tabadduloti kataboli protsessi to komponenthoi sodda tajziya shudani molekulahoi murakkab meboshad. In reaksiyaho, odatan, oksidkunanda buda, bo ikhroji energiyai khimiyavii ozod (reaksiyahoi ekzergoni) surat megirand.

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