Dab tsi yog txhais los ntawm oxidative phosphorylation?
Dab tsi yog txhais los ntawm oxidative phosphorylation?

Video: Dab tsi yog txhais los ntawm oxidative phosphorylation?

Video: Dab tsi yog txhais los ntawm oxidative phosphorylation?
Video: yog hmoov dab tsi tub huas xyooj 2024, Kaum ib hlis
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Txhais ntawm oxidative phosphorylation

: lub synthesis ntawm ATP los ntawm phosphorylation ntawm ADP uas lub zog tau txais los ntawm kev thauj khoom hluav taws xob thiab uas tshwm sim hauv mitochondria thaum lub sij hawm ua pa aerobic.

Ua raws li qhov xav tau, oxidative phosphorylation yog dab tsi thiab nws tshwm sim qhov twg?

Oxidative phosphorylation yog ib tug mechanism rau ATP synthesis nyob rau hauv cov nroj tsuag thiab tsiaj hlwb. Nws suav nrog chemiosmotic coupling ntawm electron thauj thiab ATP synthesis. Oxidative phosphorylation tshwm sim hauv mitochondria. Lub mitochondrion muaj ob daim nyias nyias: ib daim nyias nyias thiab ib daim nyias nyias.

Tsis tas li ntawd, cov theem ntawm oxidative phosphorylation yog dab tsi? Peb qhov loj cov kauj ruam hauv oxidative phosphorylation yog (a) oxidation - txo cov kev cuam tshuam nrog kev hloov hluav taws xob ntawm cov protein tshwj xeeb uas kos rau hauv daim nyias nyias mitochondrial; (b) tiam ntawm proton (H+) gradient hla lub puab mitochondrial membrane (uas tshwm sim ib txhij nrog cov kauj ruam (a

Tsis tas li ntawd, vim li cas nws thiaj li hu ua oxidative phosphorylation?

Thaum cov khoom siv hluav taws xob no tau siv los txo cov pa oxygen molecular rau hauv dej, ntau lub zog dawb tau tso tawm, uas tuaj yeem siv los tsim ATP. Oxidative phosphorylation yog cov txheej txheem uas ATP yog tsim los ntawm kev hloov ntawm electrons los ntawm NADH lossis FADH 2 rau O 2 los ntawm ib tug series ntawm electron cab kuj.

Puas yog NADH 2.5 lossis 3 ATP?

Yuav kom dhau cov electrons los ntawm NADH mus kawg Oxygen txais, tag nrho ntawm 10 protons raug thauj los ntawm matrix mus rau inter mitochondrial membrane. 4 protons ntawm complex 1, 4 ntawm complex 3 thiab 2 ntawm complex 4. Yog li rau NADH - 10/4= 2.5 TSI yog ua ua tau. Ib yam li ntawd rau 1 FADH2, 6 protons raug txav mus li 6/4 = 1.5 ATP yog ua.

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