Video: Dab tsi tshwm sim rau qhov tshuaj tiv thaiv tus nqi raws li qhov muab cov tshuaj txhuam hniav tawm?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yuav ua li cas rau qhov tshuaj tiv thaiv tus nqi raws li qhov muab cov tshuaj txhuam hniav tawm ? Cov tus nqi ntawm cov enzymes slows nqes vim koj tsis tuaj yeem tawg tus txhuam hniav yog nws twb tawg lawm. Nws tau qhia txog kev zom zaub mov ntawm cov enzyme vim tias nws tawg ua ob pawg.
Xav txog qhov no, dab tsi yuav tshwm sim rau cov tshuaj tiv thaiv ntawm cov enzymes ntxiv?
Los ntawm kev nce cov enzyme concentration, qhov siab tshaj plaws cov tshuaj tiv thaiv nce ntau heev Cov lus xaus: Cov tus nqi ntawm ib qho tshuaj tshuaj tiv thaiv nce raws li cov substrate concentration nce. Enzymes tuaj yeem ua kom nrawm heev tus nqi ntawm a tshuaj tiv thaiv . Txawm li cas los xij, cov enzymes ua saturated thaum lub substrate concentration siab.
Kuj Paub, tus pas txhuam hniav puas tuaj yeem tawg sai sai? Tau nws yog tawg infinitely sai ? Muab ib pawg ntawm txhuam hniav (substrate) thiab zoo tagnrho tej yam kev mob, nws tseem yuav siv sij hawm ib co sij hawm rau lub enzyme mus ua txhaum lub tus txhuam hniav . uas yog enzyme's V-max. Yog tias chav tau sau nrog txhuam hniav , tus nqi yuav tsis nce ntxiv, tsawg kawg thaum pib.
Kuj tseem yuav paub yog, tus toothpicks sawv cev li cas?
Cov toothpicks sawv cev lub substrate thiab koj tus ntiv tes xoo thiab ntiv tes taw sawv cev cov enzyme, Toothpickase. Thaum koj tsoo a tus txhuam hniav , qhov chaw uas cov tus txhuam hniav haum ntawm koj cov ntiv tes sawv cev qhov chaw nquag ntawm tus enzyme.
Qhov chaw ua haujlwm ntawm Toothpickase haum li cas lub tswv yim ntawm kev haum haum?
haum tswvyim hais tias muaj kev hloov pauv ntawm cov duab qhov chaw nquag ntawm ib qho enzyme kom nws khi ntau snugly rau lub substrate, ntxias los ntawm kev nkag mus ntawm lub substrate. Rov ua qhov haujlwm raws li tau hais tseg tshwj tsis yog hloov pauv qhov hloov pauv saum toj no.
Pom zoo:
Agar yog dab tsi siv rau kev sim tshuaj tiv thaiv kab mob tiv thaiv kab mob?
Müeller-Hinton agar nquag siv hauv qhov tshuaj tiv thaiv kab mob tiv thaiv kab mob no
Dab tsi yog qhov tshwm sim tshwm sim ntawm tus neeg sawv cev tiv thaiv anginal?
Mob taub hau yog qhov tshwm sim feem ntau ntawm nitrates; feem ntau cuam tshuam nrog koob tshuaj thiab tshaj tawm txog li 82% ntawm cov neeg mob hauv kev sim tshuaj tswj cov placebo. Ze li 10% ntawm cov neeg mob tsis tuaj yeem tiv taus nitrates vim ua rau mob taub hau lossis kiv taub hau
Dab tsi yog cov tshuaj tiv thaiv thiab lawv cuam tshuam nrog cov tshuaj tiv thaiv li cas?
Cov tshuaj tiv thaiv kab mob (immunoglobins) yog cov protein zoo li Y tsim los ntawm B hlwb ntawm lub cev tiv thaiv kab mob hauv kev teb rau kis rau antigens. Txhua cov tshuaj tiv thaiv muaj ib qho paratope uas paub txog ib qho epitope ntawm ib qho antigen, ua zoo li lub xauv thiab qhov tseem ceeb binding mechanism
Tus kws kho hniav muab dab tsi rau menyuam cov hniav kom tiv thaiv kab noj hniav?
Sealants yog ib txheej nyias pleev xim rau ntawm cov hniav ntawm cov hniav - feem ntau cov hniav tom qab (cov premolars thiab molars) - los tiv thaiv cov hniav lwj. Thepainted rau cov kua sealant sai sai rau hauv cov kev nyuaj siab thiab grooves ntawm cov hniav, tsim ib tug tiv thaiv thaiv tshaj theenamel ntawm txhua tus hniav
Kev tiv thaiv dab tsi tshwm sim los ntawm kev txhaj tshuaj tiv thaiv?
Artificially tau txais kev tiv thaiv kab mob tuaj yeem tsim los ntawm tshuaj tiv thaiv, ib yam khoom uas muaj antigen. Ib qho tshuaj tiv thaiv ua rau cov lus teb thawj zaug tawm tsam antigen yam tsis ua rau cov tsos mob ntawm tus kab mob