Video: Tus nqi Km thiab Vmax txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Vmax yog sib npaug rau cov khoom ntawm cov catalyst tus nqi tas li (kcat) thiab cov concentration ntawm cov enzyme. Km yog qhov concentration ntawm substrates thaum cov tshuaj tiv thaiv mus txog ib nrab ntawm Vmax . Ib qho me me Km qhia siab affinity txij li nws txhais tau tias cov tshuaj tiv thaiv ua tau ncav cuag ib nrab ntawm Vmax nyob rau hauv ib tug me me ntawm substrate concentration.
Ib yam li ntawd, nws nug, 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 feem ntau yog qhia raws li tus Km (Michaelis tas li) ntawm 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.
Kuj Paub, yog km nyob ntawm Vmax? feeb min Vmax nyob Nyob rau hauv tus txheej txheem ntawm enzyme nws tus kheej thiab cov concentration ntawm enzyme tam sim no. KM yog ib tug concentration substrate yuav tsum tau mus cuag lub siab tshaj plaws cov tshuaj tiv thaiv tshaj tawm - yog [S] >> Km ces Vo yuav nyob ze Vmax.
Ua raws li qhov xav tau, tus nqi Vmax txhais li cas?
Maximal tshaj tawm ntawm cov tshuaj tiv thaiv (lossis tus nqi siab tshaj) Vmax yog tus nqi attained thaum lub enzyme chaw yog saturated nrog substrate, piv txwv li thaum lub substrate concentration yog ntau dua li KM. Piv txwv li: Q8W1X2, Q9V2Z6. Cov Vmax nqi nyob ntawm tej yam kev mob, xws li pH, kub thiab ionic zog.
Qhov unit ntawm Vmax yog dab tsi?
Vmax "sawv cev tus nqi siab tshaj plaws ua tiav los ntawm qhov system, ntawm qhov siab tshaj plaws (saturating) substrate concentrations" (wikipedia). Chav tsev : umol/min (los yog mol/s). Thiab yog tias Vmax Nws yog nyob ntawm qhov concentration ntawm enzyme, tom kawg yuav tsum tau meej nrog rau lwm yam mob (pH, T °, )
Pom zoo:
Dab tsi yog qhov txawv ntawm ib puag ncig lapse tus nqi thiab adiabatic lapse tus nqi?
A. Ib puag ncig lapse tus nqi yog hais txog qhov kub thiab txias nrog nce qhov siab hauv troposphere; uas yog qhov kub ntawm ib puag ncig ntawm qhov chaw sib txawv. Nws implies tsis muaj huab cua txav. Adiabatic txias tsuas yog cuam tshuam nrog huab cua ascending, uas txias los ntawm kev nthuav dav
Yuav ua li cas koj thiaj nrhiav tau tus nqi ntawm tus qauv txhais tau tias?
Qhov xav tau tus nqi ntawm tus qauv txhais tau tias yog cov pej xeem txhais tau tias, thiab SE ntawm tus qauv txhais tau tias yog SD ntawm cov pej xeem, muab faib los ntawm lub hauv paus square ntawm tus qauv loj
Dab tsi yog ib puag ncig lapse tus nqi thiab adiabatic lapse tus nqi?
Recap • Lapse Rate yog tus nqi uas kub qis dua thaum qhov siab nce hauv huab cua • Ib puag ncig lapse tus nqi yog tus nqi uas kub qis dua thaum tus nqi tsis cuam tshuam los ntawm huab cua saturation • Environmental lapse rate txo sai dua thaum huab cua tsis ruaj khov. tsis ruaj khov
Yuav ua li cas koj thiaj nrhiav tau tus nqi ploj ntawm tus nqi tsim?
Tus nqi ntawm ib qho tshuaj tiv thaiv yog qhov kev hloov hauv kev concentration ntawm qhov kev hloov ntawm lub sijhawm. Cov tshuaj tiv thaiv tuaj yeem txhais tau li no: tus nqi ploj ntawm A tus nqi = −Δ [A] Δt. tus nqi ploj ntawm B tus nqi = − Δ [B] Δt. tus nqi tsim ntawm C tus nqi = Δ [C] Δt. tus nqi tsim ntawm D) tus nqi = Δ [D] Δt
Txhais li cas los ntawm tus nqi ntws ntawm tus nqi hluav taws xob?
Ib coulomb ib ob