Video: Vim li cas exotoxin yog cov tshuaj antigenic heev?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Exotoxins yog cov proteins uas yog secreted los ntawm ob peb hom kab mob thiab tau diffuse mus rau cov nyob ze los yog ib puag ncig nruab nrab. Qhov thib ob, endotoxins yog cua sov ruaj khov, tsis muaj zog tiv thaiv kab mob thaum exotoxins yog kub labile, heev antigenic . Cov kab mob co toxins yog cov proteins uas muaj peev xwm ua tiav ntau yam haujlwm.
Kuj nug, vim li cas Exotoxins phem dua li endotoxins?
Exotoxins yog tuag taus txawm tias me me. Hmoov zoo, muaj cov tshuaj tiv thaiv los tiv thaiv lawv. Ntawm qhov tod tes, endotoxins tsis tshua tuag tab sis tuaj yeem ua rau kub taub hau rau tus tswv tsev. Exotoxins tau zais los ntawm cov kab mob thiab tso tawm sab nraum lub xov tooj ntawm tes endotoxins yog cov kab mob co toxins nyob hauv cov hlwb.
Qhov thib ob, puas ua cov kab mob Gram zoo tso Exotoxins? Exotoxins (feem ntau yog los ntawm Gram - cov kab mob zoo ) yog secreted los ntawm siv tau kab mob thiab muaj zog co toxins. Surface-acting exotoxins khi rau cell membranes thiab tsim pores los ntawm cov cell lysis tshwm sim. S. aureus kuj muaj pore-forming cytotoxins hu ua α-toxin.
Ua li no, vim li cas cov kab mob tsim Exotoxins?
Ib exotoxin tshuaj yog ib co co toxins secreted los ntawm kab mob . Ib exotoxin tshuaj tuaj yeem ua rau tus tswv tsev puas tsuaj los ntawm kev rhuav tshem cov cell lossis cuam tshuam rau cov metabolism hauv ib txwm ntawm tes. Exotoxins tej zaum yuav zais, los yog, zoo ib yam li endotoxins, yuav raug tso tawm thaum lub sij hawm lysis ntawm lub cell.
Dab tsi yog exotoxin thiab endotoxin?
Exotoxins yog cov tshuaj lom uas zais los ntawm cov kab mob thiab tso tawm sab nraum lub cell. Qhov twg Endotoxins yog cov kab mob co toxins uas muaj lipid uas nyob hauv ib lub cell. Hauv qab no yog ob peb qhov sib txawv ntawm exotoxin thiab endotoxin . Yam ntxwv.
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