Qhov txawv ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Txoj Kev yog tias Embden Meyerhof Pathway yog cov glycolysis classic uas hloov cov piam thaj rau hauv pyruvate hauv eukaryotes thiab ntau prokaryotes. Tib lub sijhawm, Entner Doudoroff Pathway yog lwm txoj hauv kev ntawm glycolysis hauv ob peb cov kab mob thiab hloov cov piam thaj rau hauv pyruvate thiaj li tsim ATP.
Glycolysis yog thawj theem ntawm kev ua pa ntawm tes, uas hloov cov piam thaj rau hauv pyruvate. Muaj ntau cov kev tshwm sim tshwm sim thaum lub sij hawm glycolysis. Nws kuj tseem tsim ob lub ATP molecules raws li kev tsim tawm. Embden Meyerhof txoj kev yog ib lub ntsiab lus ntawm glycolysis. glycolysis tshwm sim hauv eukaryotes thiab ntau prokaryotes, thiab lawv siv cov piam thaj los tsim ATP. Tab sis hauv qee cov prokaryotes, tshwj xeeb tshaj yog nyob rau hauv qee cov kab mob, muaj lwm txoj hauv kev rau glycolysis. Txoj kev no yog hu ua Entner Doudoroff Pathway. Yog li, txoj kev Entner Doudoroff hloov cov glycolysis classic hauv ob peb hom kab mob.
Embden Meyerhof Pathway yog dab tsi?
Glycolysis lossis Embden Meyerhof Pathway yog thawj kauj ruam ntawm kev tsim hluav taws xob. Nws tshwm sim hauv cytosol ntawm ob qho tib si aerobes thiab anaerobes. Nws yog ib tug series ntawm enzyme-catalyzed cov tshuaj tiv thaiv. Qhov tseeb, nws muaj kaum qhov kev tshwm sim. Hauv glycolysis, cov piam thaj molecules yog phosphorylated thiab dai hauv cell kom catabolize rau hauv pyruvate molecules. Yog li, pyruvate yog qhov khoom kawg ntawm glycolysis.
Glycolysis muaj peb theem tseem ceeb raws li tau piav qhia hauv qab no:
- Theem npaj - Hauv theem no, cov piam thaj molecule, uas muaj rau carbon atoms, yog phosphorylated thiab dai hauv cell. Cov theem npaj yog ib lub zog-yuav tsum tau theem uas ob ATP molecules siv.
- The cleavage-stage - Lub sijhawm no, 6 - carbon molecule yog cleaved rau hauv ob phosphorylated 3 - carbon residues.
- Them tawm theem - Qhov no yog theem kawg ntawm glycolysis qhov twg ATP thiab NADH raug tsim. Rau txhua cov piam thaj molecule, 4 ATP molecules, 2 NADH molecules thiab 2 Pyruvate molecules yog tsim; Yog li, nws yog lub zog tsim cov theem ntawm glycolysis.
Daim duab 01: Embden Meyerhof Pathway
Thaum kawg ntawm glycolysis, raws li kev tsim tawm, tsuas yog ob lub ATP molecules yog tsim los ntawm ib lub qabzib molecule.
Entner Doudoroff Pathway yog dab tsi?
Entner Doudoroff txoj kev yog lwm txoj hauv kev ntawm glycolysis. Nws hloov txoj kev glycolysis classic. Nws tshwm sim nyob rau hauv tsuas yog nyob rau hauv prokaryotes, tshwj xeeb tshaj yog nyob rau hauv ob peb kab mob. Cov kev tshwm sim tshwm sim hauv Entner Doudoroff txoj hauv kev thiab nws catabolizes qabzib rau hauv pyruvate.
Daim duab 02: Entner Doudoroff Pathway
Ntxiv mus, cov kab mob no siv cov enzymes sib txawv hauv txoj hauv kev no thaum piv rau cov enzymes siv hauv classic glycolysis. Qee cov enzymes siv nyob rau hauv txoj kev Entner Doudoroff yog 6-phosphogluconate dehydratase thiab 2-keto-3-deoxyphosphogluconate aldolase. Ntxiv mus, txoj hauv kev Entner Doudoroff tsim cov txiaj ntsig ntawm 1 ATP los ntawm txhua cov piam thaj molecule. Nws kuj tsim tau 11 NADH thiab 1 NADPH xwb.
Dab tsi zoo sib xws ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway?
- Ob leeg Embden Meyerhof Pathway thiab Entner Doudoroff Pathway hloov cov piam thaj rau hauv pyruvate txhawm rau tsim lub zog.
- Ob yam txheej txheem tshwm sim hauv prokaryotes.
- Lawv tsim ATP thiab NADH.
- Ntxiv mus, ob qho tib si txheej txheem tshwm sim hauv cytosol.
- Lawv yog cov tshuaj tiv thaiv enzyme-catalyzed.
Qhov txawv ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway yog dab tsi?
Glycolysis lossis Embden Meyerhof Pathway yog thawj kauj ruam ntawm kev tsim hluav taws xob uas cov piam thaj hloov mus rau pyruvate. Ntawm qhov tod tes, Entner Doudoroff Pathway yog lwm txoj hauv kev ntawm glycolysis uas cov piam thaj tau catabolized rau hauv pyruvate los ntawm ob peb hom kab mob. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway. Embden Meyerhof Pathway muaj qhov txiaj ntsig ntawm 2 ATP thaum Entner Doudoroff Pathway muaj qhov txiaj ntsig ntawm 1 ATP. Qhov no yog lwm qhov sib txawv ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway. Ntxiv mus, Embden Meyerhof Pathway tsim 2 NADH thaum Entner Doudoroff Pathway tsim 1 NADH.
Cov duab hauv qab no qhia txog qhov sib txawv ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway.
Summary – Embden Meyerhof Pathway vs Entner Doudoroff Pathway
Embden Meyerhof Pathway thiab Entner Doudoroff Pathway yog ob txoj hauv kev uas ua raws li thawj kauj ruam ntawm kev tsim hluav taws xob. Embden Meyerhof Pathway yog qhov classic glycolysis thaum Entner Doudoroff Pathway yog lwm txoj hauv kev ntawm nws. Ob txoj hauv kev tsim pyruvate los ntawm qabzib. Tab sis cov enzymes koom nrog sib txawv hauv ob txoj hauv kev.net ATP thiab NADH ntau lawm kuj txawv ntawm ob txoj hauv kev. Embden Meyerhof Pathway yields 2ATP thiab 2NADH thaum Entner Doudoroff Pathway yields 1ATP thiab 1NADH. Hauv ntau cov kab mob nyob, Embden Meyerhof Pathway tshwm sim thaum tsuas yog nyob rau hauv ob peb prokaryotes, Entner Doudoroff Pathway tuaj yeem pom. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm Embden Meyerhof Pathway thiab Entner Doudoroff Pathway.
