2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
ntshav txhaws cov proteins tsim thrombin, ib qho enzyme uas hloov fibrinogen rau fibrin, thiab cov tshuaj tiv thaiv uas ua rau tsim cov fibrin clot.
Yuav ua li cas fibrinogen hloov mus rau fibrin?
Fibrinogen yog ib qho macromolecule soluble, tab sis tsim cov hlab ntsha tsis sib haum lossis gel ntawm kev hloov mus rau fibrin los ntawm kev ua ntawm serine protease thrombin, uas yog qhib los ntawm cascade ntawm cov tshuaj tiv thaiv enzymatic. tshwm sim los ntawm kev raug mob ntawm phab ntsa ntawm cov hlab ntsha, cov qe ntshav liab, lossis lwm qhov chaw (Fig. 13.1).
Hom cell twg hloov fibrinogen rau fibrin?
Cov no platelets muaj thrombin receptors ntawm lawv qhov chaw uas khi cov ntshav thrombin molecules, uas tig mus hloov cov kua dej fibrinogen hauv cov ntshav mus rau hauv fibrin ntawm qhov txhab. Fibrin tsim cov kab ntev ntev ntawm cov protein uas tsis sib haum xeeb uas khi rau cov platelets.
YPob platelets hloov fibrinogen rau fibrin?
Thaum cov ntaub so ntswg puas ua rau los ntshav, fibrinogen hloov ntawm lub qhov txhab mus rau hauv fibrin los ntawm kev ua ntawm thrombin, ib qho enzyme ua ntshav. Fibrin molecules tom qab ntawd ua ke los ua cov fibers ntev ntev uas cuam tshuam cov platelets, tsim cov pob txha loj uas maj mam tawv thiab sib cog lus los tsim cov ntshav txhaws.
fibrinogen hloov mus ua dab tsi?
Thaum lub sijhawm coagulation, fibrinogen hloov mus ua insoluble fibrin(Daim duab 1). Fibrin tsim muaj thrombin-mediated proteolytic cleavage thiab tshem tawm ntawm N-terminal fibrinopeptides los ntawm Aα thiab Bβ chains.
Pom zoo:
Dab tsi yog qhov hloov pauv thiab hloov pauv hloov pauv?
Point mutations hloov ib leeg nucleotide. Frameshift kev hloov pauv yog ntxiv lossis tshem tawm ntawm nucleotides uas ua rau muaj kev hloov pauv hauv kev nyeem ntawv. frameshift thiab point mutation yog dab tsi? Ib qho kev hloov pauv cuam tshuam rau ib khub hauv paus.
Qhov kev hloov pauv no puas yuav ua rau muaj kev hloov pauv hloov pauv?
Yog li, yog tias muaj kev hloov pauv, piv txwv li, kev ntxig lossis tshem tawm ntawm nucleotide, tshwm sim, qhov no tuaj yeem ua rau kev hloov pauv ntawm kev nyeem ntawv. Nws hloov tag nrho cov amino acid ib ntus. Cov kev hloov pauv no yog hu ua frameshift mutation (tseem hu ua kev nyeem ntawv hloov pauv, nyeem ntawv hloov pauv, lossis framing yuam kev).
Puas yog jurassic ntiaj teb hloov pauv hloov pauv hloov pauv?
Qee zaum, paub meej, koj yuav tau rov qab mus rau lub sijhawm dhau los - txuag manually, thiab feem ntau, raws li game's autosave yog… tsis zam txim - tab sis feem ntau ntawm cov lub sijhawm koj tuaj yeem khaws cov khoom thiab khaws cia nrog.
Qhov twg yog qhov kev hloov pauv hloov pauv hloov pauv?
Semiconservative replication piav qhia txog cov txheej txheem ntawm DNA replication nyob rau hauv tag nrho cov paub hlwb. DNA replication tshwm sim ntawm ntau lub hauv paus pib ntawm kev rov ua dua raws DNA qauv strand. Raws li DNA ob chav helix yog unwound by helicase, replication tshwm sim nyias ntawm txhua tus qauv strand nyob rau hauv antiparallel cov lus qhia.
Qhov kev hloov pauv twg yog xav tias yuav cuam tshuam los ntawm kev hloov pauv hloov pauv?
Dependent Variable Qhov sib txawv uas nyob ntawm lwm yam uas ntsuas. Cov kev hloov pauv no yuav tsum tau hloov pauv raws li qhov kev sim ua haujlwm ntawm tus kheej hloov pauv lossis hloov pauv. Nws yog cov nyhuv presumed. Qhov kev tshawb fawb hloov pauv twg yog qhov tshwm sim?
