Video: Dab tsi yog saturation kinetics ntawm ib qho enzyme?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txawm li cas los xij, tsis zoo li cov tshuaj tiv thaiv tsis muaj tshuaj lom neeg, enzyme - catalysed cov tshuaj tiv thaiv saturation ntawm kinetics . Qhov thib ob tseem ceeb tshaj plaws kinetic properties of ib enzyme yog yooj yim npaum li cas enzyme ua saturated nrog rau ib qho tshwj xeeb substrate, thiab qhov siab tshaj plaws nws tuaj yeem ua tiav.
Ib yam li ntawd, saturation kinetics yog dab tsi?
Saturation kinetics hais txog qhov xwm txheej ntawm cov tshuaj tiv thaiv enzyme mus txog qhov siab tshaj plaws ntawm qib siab S.
Qhov thib ob, V yog dab tsi hauv enzyme kinetics? Enzyme kinetics Daim duab qhia tus nqi ntawm cov tshuaj tiv thaiv raws li kev ua haujlwm ntawm substrate concentration. Tus nqi no, tus nqi ntawm cov khoom tsim tawm ib lub sijhawm ntawm qhov pib ntawm cov tshuaj tiv thaiv, yog hu ua qhov pib tshaj tawm, lossis V 0 V_0 V 0? V , pib subscript, 0, kawg subscript, rau qhov concentration.
Tsis tas li ntawd, dab tsi yog txhais los ntawm saturation ntawm enzyme?
Thaum ib enzyme yog saturated nrog substrate nws txhais tau tias lub substrate concentration nce mus txog qhov chaw uas tsis muaj ib qho ntawm cov chaw muaj nyob dawb. Txij li cov tshuaj tiv thaiv tus nqi tam sim no txiav txim siab los ntawm kev ceev npaum li cas enzyme -substrate complex yog hloov dua siab tshiab rau cov khoom, cov tshuaj tiv thaiv tus nqi ua tas mus li - lub enzyme yog saturated.
Vim li cas enzyme kinetics tseem ceeb?
Kev kawm ntawm cov enzyme kinetics yog tseem ceeb rau ob qho laj thawj. Ua ntej, nws pab piav qhia li cas cov enzymes ua haujlwm, thiab qhov thib ob, nws pab kwv yees li cas cov enzymes coj tus cwj pwm nyob rau hauv lub cev. Cov kinetic cov lus hais saum toj no, Km thiab Vmax, yog qhov tseem ceeb rau kev sim nkag siab li cas cov enzymes ua haujlwm ua ke los tswj cov metabolism.
Pom zoo:
Dab tsi ntawm cov organic compound yog ib qho enzyme?
Ntawm cov organic macromolecules, enzymes muaj nyob rau hauv qeb ntawm cov proteins. Proteins txawv ntawm carbohydrates, nucleic acids thiab lipids nyob rau hauv uas ib tug protein yog tsim los ntawm amino acids. Amino acids txuas ua ke rau hauv cov saw hlau uas tuaj yeem fold rau hauv cov duab peb sab
Dab tsi yog thawj kauj ruam ntawm kev tsim ib qho perpendicular los ntawm ib qho taw tes mus rau kab?
Txuas tus taw tes rau qhov taw tes uas cov arcs sib tshuam. Siv ib tug straightedge los xyuas kom meej cov kab yog ncaj. Txoj kab koj kos yog perpendicular rau thawj kab, los ntawm qhov muab taw tes rau ntawm kab
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Lub kinetics ntawm cov tshuaj tiv thaiv yog dab tsi?
Chemical kinetics, tseem hu ua cov tshuaj tiv thaiv kinetics, yog ceg ntawm lub cev chemistry uas muaj kev txhawj xeeb nrog kev nkag siab txog tus nqi ntawm cov tshuaj tiv thaiv. Nws yog yuav tsum tau sib piv nrog cov thermodynamics, uas cuam tshuam nrog cov kev taw qhia nyob rau hauv uas ib tug txheej txheem tshwm sim tab sis nyob rau hauv nws tus kheej qhia tsis muaj dab tsi txog nws tus nqi