Video: Qhov twg hauv mitochondria puas pyruvate oxidation tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pyruvate yog tsim los ntawm glycolysis hauv cytoplasm, tab sis pyruvate oxidation tshwm sim nyob rau hauv lub mitochondrial matrix (hauv eukaryotes). Yog li, ua ntej cov tshuaj tiv thaiv tuaj yeem pib, pyruvate ua yuav tsum nkag rau hauv mitochondrion , hla nws daim nyias nyias thiab tuaj txog ntawm matrix.
Hais txog qhov no, pyruvate nkag mus rau hauv mitochondria li cas?
Kev thauj mus los ntawm pyruvate nyob rau hauv mitochondria yog los ntawm kev thauj cov protein pyruvate ua translocase. Pyruvate translocase thauj pyruvate ua nyob rau hauv ib tug symport zam nrog ib tug proton, thiab li no yog active, siv zog. Thaum nkag mus rau lub mitochondria , cov pyruvate ua yog decarboxylated, tsim acetyl-CoA.
Ib sab saum toj no, qhov twg oxidative phosphorylation tshwm sim? Oxidative phosphorylation tshwm sim nyob rau hauv lub puab mitochondrial membrane, nyob rau hauv sib piv nrog rau feem ntau ntawm cov tshuaj tiv thaiv ntawm citric acid voj voog thiab fatty acid. oxidation , uas coj qhov chaw nyob rau hauv lub matrix.
Hauv kev hwm rau qhov no, yuav ua li cas rau pyruvate hauv mitochondria?
Yog lawm, pyruvate ua oxidation tshwm sim hauv mitochondrial matrix ntawm eukaryotic hlwb. Sai li sai tau pyruvate ua nkag rau hauv mitochondrial matrix nyob rau hauv eukaryotes, nws yog oxidatively decarboxylated (nrog kev pab los ntawm cov enzymes. Pyruvate DeHydrogenase, PDH) los tsim Acetyl CoA (uas yog tom qab ntawd pub dawb los ua lub substrate hauv Krebs cycle).
Puas tuaj yeem pyruvate nkag mus rau mitochondria?
Thaum lub sij hawm ua pa metabolism, pyruvate tuaj yeem nkag mus rau mitochondria los ntawm ib tus neeg nqa khoom tshwj xeeb (4, 5) thiab decarboxylated thiab oxidized rau hauv acetyl-CoA los ntawm pyruvate ua dehydrogenase, multienzyme complex nyob rau hauv lub matrix (6).
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
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Qhov twg oxidation tshwm sim nyob rau hauv ib tug galvanic cell?
Nyob rau hauv voltaic cell, oxidation thiab txo cov hlau tshwm sim ntawm cov electrodes. Muaj ob lub electrodes nyob rau hauv ib tug voltaic cell, ib tug nyob rau hauv ib nrab-cell. Lub cathode yog qhov chaw txo qis thiab oxidation tshwm sim ntawm lub anode
Qhov twg hauv mitochondria puas oxidative phosphorylation tshwm sim?
Oxidative phosphorylation tshwm sim nyob rau hauv lub puab mitochondrial membrane, nyob rau hauv sib piv nrog rau feem ntau ntawm cov tshuaj tiv thaiv ntawm citric acid voj voog thiab fatty acid oxidation, uas tshwm sim nyob rau hauv lub matrix
Qhov txheej twg yog huab cua tshwm sim feem ntau tshwm sim?
Troposphere. Lub troposphere (los ntawm Greek: tropein - hloov, ncig lossis sib xyaw) yog txheej qis tshaj plaws ntawm lub ntiaj teb huab cua. Feem ntau ntawm huab cua phenomena, systems, convection, turbulence thiab huab tshwm sim nyob rau hauv no txheej, tab sis tej zaum yuav mus rau hauv lub qis feem ntawm thestratosphere
Puas muaj pyruvate oxidation tshwm sim tsis muaj oxygen?
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