Video: Qhov twg electron thauj saw nyob rau hauv cellular respiration?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv eukaryotes, ib qho tseem ceeb electron thauj saw muaj nyob rau hauv lub puab mitochondrial membrane qhov twg nws ua hauj lwm raws li qhov chaw ntawm oxidative phosphorylation los ntawm kev ua ntawm ATP synthase. Nws kuj pom muaj nyob rau hauv thylakoid membrane ntawm chloroplast hauv photosynthetic eukaryotes.
Xav txog qhov no, qhov twg electron thauj saw nyob rau hauv cellular respiration?
Electron Transport Chain . Cov kauj ruam kawg ntawm cellular ua pa yog cov electron thauj saw . Cov electron thauj saw xav tau oxygen, uas txhais tau hais tias nws yog cov txheej txheem aerobic. Nws yuav siv qhov chaw nyob rau hauv lub folds ntawm lub puab membrane ntawm lub mitochondria.
Kuj Paub, txhua kauj ruam ntawm kev ua pa ntawm tes tshwm sim nyob qhov twg? Cellular ua pa tshwm sim Nyob rau hauv ob qho tib si eukaryotic thiab prokaryotic hlwb, nrog rau feem ntau tshwm sim nyob rau hauv lub cytoplasm ntawm prokaryotes thiab nyob rau hauv lub mitochondria ntawm eukaryotes. Muaj peb theem tseem ceeb ntawm cellular ua pa : glycolysis, citric acid voj voog, thiab electron thauj / oxidative phosphorylation.
Tsis tas li lo lus nug yog, dab tsi tshwm sim hauv electron thauj saw hauv cellular respiration?
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.
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 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
Qhov twg electron configuration sawv cev rau ib tug atom nyob rau hauv nws lub hauv av?
Yog li txhua qhov kev teeb tsa hluav taws xob nyob rau hauv uas lub xeem electron (dua, lub valence electron) yog nyob rau hauv lub zog ntau dua orbital, lub caij no tau hais tias nyob rau hauv lub xeev zoo siab. Piv txwv li, yog tias peb saib hauv av hauv lub xeev (electrons nyob rau hauv lub zog qis tshaj plaws uas muaj orbital) ntawm oxygen, lub teeb tsa hluav taws xob yog 1s22s22p4
Cov neeg nqa khoom ntawm cov saw hlau thauj electron nyob qhov twg?
Nyob rau hauv eukaryotes, ib qho tseem ceeb electron thauj saw yog pom nyob rau hauv lub puab mitochondrial membrane qhov twg nws ua hauj lwm raws li qhov chaw ntawm oxidative phosphorylation los ntawm kev ua ntawm ATP synthase. Nws kuj pom muaj nyob rau hauv thylakoid membrane ntawm chloroplast hauv photosynthetic eukaryotes
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
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