Video: HMP shunt tshwm sim qhov twg?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
4. Qhov chaw ntawm txoj kev • Cov enzymes nyob hauv cytosol. Cov ntaub so ntswg xws li daim siab, cov ntaub so ntswg adipose, cov qog adrenal, erythrocytes, cov noob qes thiab cov qog noj mis pub niam mis, ua haujlwm tau zoo heev HMP qhov chaw.
Tsis tas li ntawd, lub hom phiaj ntawm HMP shunt yog dab tsi?
Cov hexose monophosphate hmoov , tseem hu ua pentose phosphate pathway, yog txoj hauv kev tshwj xeeb uas siv los tsim cov khoom lag luam tseem ceeb hauv lub cev vim ntau yam. Cov HMP swb yog lwm txoj hauv kev rau glycolysis thiab tau siv los tsim cov ribose-5-phosphate thiab nicotinamide adenine dinucleotide phosphate (NADPH).
vim li cas HMP shunt hu ua shunt? Nws yog hu ua lub pentose phosphate kaw vim txoj hauv kev tso cai rau carbon atoms los ntawm qabzib 6-phosphate mus taug kev luv luv (a shunt ) ua ntej lawv mus rau txoj kev Embden-Meyerhof (glycolytic).
Kuj paub, qhov twg yog txoj kev pentose phosphate tshwm sim?
Cov pentose phosphate txoj kev tshwm sim hauv cytosol ntawm tes, tib qhov chaw zoo li glycolysis. Ob yam khoom tseem ceeb tshaj plaws los ntawm cov txheej txheem no yog ribose-5- phosphate qab zib siv los ua DNA thiab RNA, thiab NADPH cov lwg me me uas pab tsim lwm cov qauv.
Ob yam khoom tseem ceeb ntawm HMP shunt yog dab tsi?
Lub pentose phosphate txoj kev (tseem hu ua phosphogluconate txoj kev thiab cov hexose monophosphate shunt ) yog metabolic txoj kev parallel rau glycolysis. Nws tsim NADPH thiab pentoses (5-carbon suab thaj) nrog rau ribose 5-phosphate, ua ntej rau kev sib xyaw ntawm nucleotides.
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