Video: Puas yog oxidative phosphorylation zoo ib yam li electron thauj saw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Dab tsi yog thawj kauj ruam hauv cov saw hlau thauj electron?
Cov saw hlau thauj khoom siv hluav taws xob siv cov khoom lag luam los ntawm thawj ob txoj haujlwm ntawm glycolysis thiab citric acid voj voog kom tiav cov tshuaj tiv thaiv uas hloov peb cov zaub mov rau hauv lub zog siv tau ntawm tes
Dab tsi yog cov reactants thiab cov khoom ntawm electron thauj saw hauv cellular respiration?
Lub ntsiab biochemical reactants ntawm ETC yog cov electron pub succinate thiab nicotinamide adenine dinucleotide hydrate (NADH). Cov no yog tsim los ntawm cov txheej txheem hu ua citric acid voj voog (CAC). Cov rog thiab suab thaj tau tawg mus rau hauv cov molecules yooj yim xws li pyruvate, uas tom qab ntawd pub rau hauv CAC
Dab tsi yog cov khoom ntawm electron thauj saw?
Cov khoom kawg ntawm cov saw hlau thauj khoom yog dej thiab ATP. Ntau qhov sib xyaw nruab nrab ntawm lub voj voog citric acid tuaj yeem hloov mus rau hauv anabolism ntawm lwm cov biochemical molecules, xws li cov amino acids tsis tseem ceeb, suab thaj, thiab lipids
Muaj pes tsawg ATP koj tau txais los ntawm electron thauj saw?
ob ATP Hais txog qhov no, puas yog ib qho ATP siv hauv cov saw hlau thauj hluav taws xob? Tsis muaj ATP yog tsim nyob rau hauv lub electron thauj saw . Lub npe ntawm cov protein embedded uas muab cov channel rau hydrogen ions kom dhau los ntawm daim nyias nyias yog ATP synthase.
Lub hom phiaj ntawm electron thauj saw hauv cellular respiration yog dab tsi?
Kev ua haujlwm ntawm cov saw hlau thauj hluav taws xob yog los tsim cov transmembrane proton electrochemical gradient raws li qhov tshwm sim ntawm cov tshuaj tiv thaiv redox. ATP synthase, ib qho enzyme uas tau txais txiaj ntsig zoo ntawm txhua lub neej ntawm lub neej, hloov cov kev ua haujlwm no rau hauv cov tshuaj lom neeg los ntawm kev tsim cov ATP, uas ua rau muaj kev cuam tshuam ntau ntawm cov cellular