Puas yog oxidative phosphorylation zoo ib yam li electron thauj saw?
Puas yog oxidative phosphorylation zoo ib yam li electron thauj saw?

Video: Puas yog oxidative phosphorylation zoo ib yam li electron thauj saw?

Video: Puas yog oxidative phosphorylation zoo ib yam li electron thauj saw?
Video: Free radicals (Reactive oxygen species) 2024, Kaum ib hlis
Anonim

Oxidative phosphorylation yog tsim los ntawm ob qhov sib txuas sib txuas: lub electron thauj saw thiab chemiosmosis. Hauv electron thauj saw , electrons tau dhau los ntawm ib qho molecule mus rau lwm qhov, thiab lub zog tso tawm hauv cov no hluav taws xob Kev hloov pauv yog siv los ua ib qho electrochemical gradient.

Hais txog qhov no, qhov txawv ntawm electron thauj saw thiab oxidative phosphorylation yog dab tsi?

Oxidative phosphorylation yog ib tug txheej txheem uas muaj ib tug ntws electrons dhau ntawm electron thauj saw , series ntawm cov protein thiab hluav taws xob cov kab mob hauv lub mitochondrial membrane. Qhov no ntws ntawm electrons tso cai rau electron thauj saw tso cov protons mus rau ib sab ntawm mitochondrial membrane.

Tsis tas li ntawd, dab tsi tshwm sim rau NADH hauv cov saw hlau thauj hluav taws xob? Cov xwm txheej ntawm cov electron thauj saw koom nrog NADH thiab FADH, uas ua raws li hluav taws xob transporters thaum lawv ntws los ntawm lub puab membrane qhov chaw. Nyob rau hauv complex kuv, electrons tau dhau los ntawm NADH mus rau electron thauj saw , qhov twg lawv ntws los ntawm cov seem complexes. NADH yog oxidized rau NAD hauv cov txheej txheem no.

Tsis tas li lo lus nug yog, vim li cas cov saw hlau thauj hluav taws xob tseem hu ua oxidative phosphorylation?

Thaum oxidative phosphorylation , electrons raug pauv los ntawm hluav taws xob pub rau hluav taws xob txais xws li oxygen hauv cov tshuaj tiv thaiv redox. Cov tshuaj tiv thaiv redox no tso tawm lub zog, uas yog siv los tsim ATP. Cov kab sib txuas ntawm cov protein no yog hu ua electron transport chains.

Yuav ua li cas tshwm sim nyob rau hauv ib tug electron thauj saw?

Siab zog electrons yog thauj los ntawm ib tus neeg nqa khoom mus rau lwm tus. Txhua 2 lub zog loj electrons hla dhau Electron Transport Chain , lawv lub zog yog siv los thauj Hydrogen ions hla lub membrane.

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