Video: Tus nqi ntawm KM yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Km tus nqi yog tus lej sib npaug rau cov substrateconcentration uas ib nrab ntawm cov enzyme molecules thaj chaw koom nrog substrate. km nqi yog ib qho Performance index ntawm theaffinity ntawm enzyme rau nws cov substrate.
Tsis tas li ntawd, tus nqi Km txhais li cas?
Michaelis tsis tu ncua ( KM ) txhais tau tias yog cov substrate concentration uas cov tshuaj tiv thaiv tus nqi yog ib nrab ntawm nws cov maximal tus nqi (los yog hauv lwm lo lus nws txhais cov substrateconcentration uas ib nrab ntawm cov chaw ua haujlwm tau nyob).
Michaelis Menten xam km li cas? Qhov no yog hu ua saturation plot los yog Michaelis - Menten zaj. Cov kev sib npaug uas txhais cov Michaelis - Menten plot is: V = (Vmax [S]) ÷ (KM + [S}). Ntawm qhov pointat uas KM = [S], this kev sib npaug txo rau V = Vmax ÷ 2, KM yog sib npaug rau lub concentration ntawm lub substrate thaum lub tshaj tawm yog ib nrab ntawm nws cov nqi siab tshaj plaws.
Ib yam li ntawd, Km thiab Vmax yog dab tsi?
Tus nqi ntawm cov tshuaj tiv thaiv thaum lub enzyme saturated nrog substrate yog qhov siab tshaj plaws ntawm cov tshuaj tiv thaiv, Vmax . Qhov no isusually nthuav tawm raws li tus Km (Michaelis tas li) ntawm cov enzyme, ib qho kev ntsuas kev sib hloov ntawm kev sib raug zoo. Rau lub hom phiaj siv tau, Km yog qhov concentration ntawm substrate uas tso cai rau cov enzyme kom ua tiav ib nrab Vmax.
Qhov tsis zoo km txhais li cas?
Km tau tsis yog tsis zoo . Km txhais tau tias yog qhov concentration ntawm substrate thaum cov tshuaj tiv thaiv mus txog ib nrab ntawm qhov siab tshaj plaws tshaj tawm.
Pom zoo:
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