Video: Dab tsi yog txhais los ntawm electron thauj system?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov electron thauj system yog theem nyob rau hauv cellular respiration nyob rau hauv uas oxidative phosphorylation tshwm sim thiab cov feem ntau ntawm cov ATP yog tsim.
Tsis tas li ntawd, lub tshuab thauj khoom electron ua haujlwm li cas?
Cov electron thauj saw yog ib tug series ntawm hluav taws xob transporters embedded nyob rau hauv lub puab mitochondrial membrane uas shuttles electrons los ntawm NADH thiab FADH2 rau molecular oxygen. Nyob rau hauv tus txheej txheem, protons yog pumped los ntawm lub mitochondrial matrix mus rau lub intertermembrane qhov chaw, thiab oxygen yog txo mus rau hauv dej.
Qhov thib ob, dab tsi yog 3 kauj ruam tseem ceeb hauv cov saw hlau thauj hluav taws xob? Aerobic ("kev siv oxygen") ua pa tshwm sim hauv peb theem : glycolysis, Krebs cycle, thiab electron thauj . Hauv glycolysis, qabzib tau muab faib ua ob lub molecules ntawm pyruvate. Qhov no ua rau muaj qhov nce ntawm ob ATP molecules.
Ua raws li qhov no, qhov tseem ceeb ntawm kev thauj mus los ntawm electron yog dab tsi?
Cov electron thauj saw yog a qhov system los ntawm cov molecules electrons tau pauv mus tsim ATP. Nws muaj ib tseem ceeb lub luag haujlwm hauv photosynthesis thiab cellular respiration.
Dab tsi yog electron thauj saw hauv cov ntsiab lus yooj yim?
Cov electron thauj saw muaj ib tug series ntawm redox tshuaj tiv thaiv nyob rau hauv uas electrons tau pauv los ntawm tus neeg pub khoom molecule mus rau tus txais molecule. Lub hauv paus quab yuam tsav cov kev cuam tshuam no yog lub zog dawb (lub zog muaj los ua haujlwm) ntawm cov reactants thiab cov khoom.
Pom zoo:
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
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Lub zog rau kev thauj mus los ntawm qhov twg thiab vim li cas thiaj li xav tau lub zog rau kev thauj mus los?
Kev thauj mus los nquag yog txheej txheem uas yuav tsum tau txav cov molecules tawm tsam qhov concentration gradient. Cov txheej txheem yuav tsum muaj zog. Lub zog rau cov txheej txheem tau txais los ntawm kev rhuav tshem cov piam thaj siv oxygen hauv kev ua pa aerobic. ATP yog tsim thaum ua pa thiab tso tawm lub zog rau kev thauj mus los