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GLIKOGEN

glikogenGLIKOGEN (az yun. glykys – shirin va gennao – hosil kardan; nomi peshtaraash – krakhmali hayvonot), polisakharid; massai mol. 107 – 109; molekulaash az boqimondai glyukoza iborat ast. G.-ro s. 1857 K. Bernar dar jigar kashf namudaast. G. dar organizm bo du roh tajziya meshavad: 1) dar ravandi hozima zeri tasiri amilazaho gidroliz shuda, avval dekstrinho, sipas maltoza va glyukoza hosil mekunad; 2) dar dokhili hujayrai boftaho zeri tasiri fosforilazaho ba glyukoza va glyukoza-1-fosfat tabdil meyobad.
G. dar hama uzvu boftaho vujud dorad; miqdori on khususan dar jigar bisyor ast. G. az 3 to 6%-i massai umumii boftahoi organizmro tashkil medihad. Dar mushakho miqdori on 0,3 – 3% ast. G.-i jigar manbai asosii glyukozai organizm ba shumor muravad. Vazifai asosii G.-i mushakho bo energiya tamin namudani onho ast; dar natijai tajziyai G. dar mushakho (glikogenoliz) kislotai shir hosil meshavad.

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