Video: Catalytic efficiency txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
kcat = tus naj npawb ntawm cov substrate molecules / lub sij hawm uas qhov chaw enzymatic tuaj yeem ua. qhov no tseem hu ua tus lej turnover. catalytic efficiency = yuav ua li cas "zoo" ib qho enzyme nyob rau hauv catalyzing cov tshuaj tiv thaiv. zoo li yog tias koj xav sib piv cov nqi ntawm ib qho enzyme ua rau ob lub substrates sib txawv lossis ib yam dab tsi.
Hauv qhov no, qhov kev ua haujlwm siab catalytic txhais li cas?
Kev nce cov tshuaj tiv thaiv ntawm cov tshuaj tiv thaiv kab mob tso cai rau cov tshuaj tiv thaiv ntau dua muaj txiaj ntsig , thiab yog li ntau cov khoom tsim tawm ntawm tus nqi nrawm dua. Qhov no yog lub npe hu ua catalytic efficiency ntawm cov enzymes, uas, los ntawm kev nce tus nqi, ua rau ntau dua muaj txiaj ntsig tshuaj tiv thaiv nyob rau hauv ib tug biological system.
Ib yam li ntawd, qhov qis kcat txhais li cas? Siab Km txhais tau tias uas koj xav tau ntau substrate kom ncav cuag ib tug tej yam tshuaj tiv thaiv tus nqi, thaum a qis Km txhais tau tias qhov opposite. Kcat , lossis k2 lossis tus lej hloov pauv (lawv txhua tus txhais tau tias tib yam) yog kev ntsuas ntawm pes tsawg substrates ib (1) enzyme tuaj yeem hloov mus rau hauv ib qho khoom ib ob.
Ib tug kuj yuav nug, dab tsi yog tus nqi catalytic?
catalytic tus nqi tas li (kcat) Thawj-txiav txim tus nqi tas li uas piav txog qhov tus nqi - txwv cov kauj ruam hauv enzyme catalysis , feem ntau yog hloov dua siab tshiab ntawm enzyme-substrate complex rau hauv enzyme-product complex; lub siab tshaj plaws tshaj tawm muab faib los ntawm cov enzyme concentration.
Tus nqi kinetic twg txhais tau tias kev ua haujlwm ntawm enzyme?
Specification tsis tu ncua. Los ntawm Wikipedia, dawb encyclopedia. Hauv thaj chaw biochemistry, qhov tshwj xeeb tsis tu ncua (tseem hu ua kinetic efficiency los yog.), yog ib qho kev ntsuas ntawm qhov ua tau zoo npaum li cas enzyme converts substrates rau hauv cov khoom.
Pom zoo:
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