Yuav ua li cas tshwm sim rau pyruvate tsim nyob rau hauv glycolysis?
Yuav ua li cas tshwm sim rau pyruvate tsim nyob rau hauv glycolysis?

Video: Yuav ua li cas tshwm sim rau pyruvate tsim nyob rau hauv glycolysis?

Video: Yuav ua li cas tshwm sim rau pyruvate tsim nyob rau hauv glycolysis?
Video: Tsis Muaj Peev Xwm Yuav Ua Li Cas 2024, Kaum ib hlis
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Pyruvate yog tsim tawm los ntawm glycolysis nyob rau hauv lub cytoplasm, tab sis pyruvate ua oxidation tshwm sim nyob rau hauv mitochondrial matrix (hauv eukaryotes). Ib pawg carboxyl raug tshem tawm ntawm pyruvate ua thiab tso tawm raws li carbon dioxide. Ob-carbon molecule los ntawm thawj kauj ruam yog oxidized, thiab NAD + txais cov electrons los ua NADH.

Hauv qhov no, txoj hmoo ntawm pyruvate yog dab tsi thaum lub sij hawm glycolysis?

Txoj hmoo ntawm Pyruvate Pyruvate yog ib tug ntau yam molecule uas pub rau hauv ntau txoj kev. Tom qab glycolysis , nws tuaj yeem hloov mus rau acetyl CoA kom tiav oxidation los ntawm kev nkag mus rau lub voj voog citric acid thiab oxidative phosphorylation.

Tsis tas li ntawd, ua li cas rau pyruvate hauv fermentation? Thaum tsis muaj oxygen lossis yog tias lub cev tsis tuaj yeem ua pa aerobic, pyruvate ua yuav ua raws li txheej txheem hu ua fermentation . Fermentation tsis xav tau oxygen thiab yog li ntawd anaerobic. Fermentation yuav ntxiv NAD + los ntawm NADH + H + ua hauv glycolysis.

Hauv qhov no, pyruvate mus qhov twg tom qab glycolysis?

Hauv eukaryotic hlwb, lub pyruvate ua molecules tsim nyob rau thaum xaus ntawm glycolysis raug thauj mus rau mitochondria, uas yog qhov chaw ntawm kev ua pa ntawm tes. Nyob ntawd, pyruvate ua yuav hloov mus rau hauv ib pawg acetyl uas yuav tau khaws thiab qhib los ntawm cov cab kuj hu ua coenzyme A (CoA).

Dab tsi yog qhov khoom kawg ntawm glycolysis?

Glycolysis suav nrog kev rhuav tshem cov suab thaj (feem ntau qabzib , txawm hais tias fructose thiab lwm yam suab thaj yuav siv tau) rau hauv cov tshuaj tswj tau ntau dua txhawm rau tsim lub zog. Cov khoom kawg ntawm glycolysis yog ob Pyruvate , ob NADH, thiab ob ATP (Ib daim ntawv tshwj xeeb ntawm "ob" ATP tom qab).

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