![Antigen yog dab tsi thiab nws ua haujlwm li cas? Antigen yog dab tsi thiab nws ua haujlwm li cas?](https://i.answers-medical.com/preview/medical-health/13928435-what-is-antigen-and-its-function-j.webp)
Video: Antigen yog dab tsi thiab nws ua haujlwm li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Antigen yog macromolecule uas ua rau muaj kev tiv thaiv kab mob los ntawm lymphocytes. Feem ntau, ib qho antigen tau txhais tias yog cov khoom uas khi rau cov tshuaj tiv thaiv tshwj xeeb, uas nyob hauv tib neeg lub cev tau siv los nrhiav thiab tshem tawm txhua yam muaj peev xwm tsim teeb meem txawv teb chaws hauv cov ntshav.
Thiaj li, dab tsi yog qhov antigen yooj yim txhais?
Cov txhais ntawm antigen yog cov khoom phom sij uas nkag mus rau hauv lub cev uas ua rau lub cev tsim cov tshuaj tiv thaiv raws li cov lus teb los tawm tsam kab mob. Piv txwv ntawm ib qho antigen yog tus kab mob khaub thuas uas ua rau lub cev tsim cov tshuaj tiv thaiv uas pab tiv thaiv tus neeg kom tsis txhob mob.
Ntxiv mus, 3 hom antigens yog dab tsi? Antigens feem ntau yog cov protein. Tab sis lawv tuaj yeem yog lipid, carbohydrates lossis nucleic acids. Antigens tuaj yeem yog peb hom - Exogenous, endogenous thiab autoantigens. Antigens kuj tuaj yeem yog lub cev txawv teb chaws uas txhawb kev tiv thaiv kab mob hauv lub cev.
Hauv qhov no, dab tsi yog antigen thiab nws hom?
Raws li lub peev xwm ntawm antigens mus nqa tawm lawv kev ua haujlwm, antigens yog ntawm ob hom : tiav antigens thiab tsis tiav antigens (haptens). Ua tiav antigen muaj peev xwm yaum kom tsim cov tshuaj tiv thaiv kab mob thiab tsim qhov tshwj xeeb thiab pom tau cov tshuaj tiv thaiv nrog cov tshuaj tiv thaiv yog li tsim tawm.
Puas yog antigens zoo?
Molecules uas yog tshuaj lom ua ke yog tiv thaiv kab mob. Yog li txawv teb chaws cov protein thiab carbohydrates yog zoo antigens . Cov kab mob virus thiab cov kab mob Bacterial cells muaj ntau yam antigens . Qhov ntawd yog vim cov kab mob thiab kab mob tau tsim los ntawm ntau cov qauv sib txawv uas txawv teb chaws rau tib neeg lub cev.
Pom zoo:
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Melanin yog lub npe ntawm cov xim xim uas txiav txim siab xim dav ntawm daim tawv nqaij thiab plaub hau hauv tib neeg. Cov ntaub ntawv ntawm melanin yog lub luag haujlwm rau xim thoob plaws ntiaj teb tsiaj; Piv txwv li, tis xim hauv cov noog yog tsim los ntawm melanin
Dab tsi yog cov tshuaj tiv thaiv kab mob thiab nws txoj haujlwm yog dab tsi?
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Cov tshuaj tiv thaiv, tseem hu ua immunoglobulins, yog Y-zoo li cov proteins uas tsim los ntawm lub cev tiv thaiv kab mob los pab tiv thaiv cov neeg nkag los ntawm kev ua phem rau lub cev. Thaum tus neeg nkag mus rau hauv lub cev, lub cev tiv thaiv kab mob pib ua haujlwm. Cov neeg ntxeem tau no, uas hu ua antigens, tuaj yeem yog kab mob, kab mob, lossis lwm yam tshuaj lom neeg
Lub cev tiv thaiv kab mob yog dab tsi thiab nws txoj haujlwm yog dab tsi?
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Lub cev tiv thaiv kab mob yog ib qho kev sib txuas ntawm cov hlwb thiab cov proteins uas tiv thaiv lub cev tiv thaiv kab mob. Lub cev tiv thaiv kab mob khaws cov ntaub ntawv ntawm txhua tus kab mob (microbe) nws tau swb lawm yog li nws tuaj yeem lees paub thiab rhuav tshem cov kab mob sai sai yog tias nws nkag mus rau hauv lub cev dua
ADH yog dab tsi thiab nws txoj haujlwm yog dab tsi?
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Nws yog ib yam tshuaj uas tsim los ntawm lub hypothalamus nyob rau hauv lub hlwb thiab khaws cia nyob rau hauv lub posterior pituitary caj pas. Nws qhia koj ob lub raum kom txuag dej ntau npaum li cas. ADH tas li tswj hwm thiab sib npaug cov dej hauv koj cov ntshav. Cov dej ntau dua tuaj yeem ua rau ntim thiab siab ntawm koj cov ntshav
Lipase yog dab tsi thiab nws txoj haujlwm yog dab tsi?
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Lipase yog ib qho enzyme uas zom cov rog rog rau hauv cov molecules me me hu ua fatty acids thiab glycerol. Ib qho me me ntawm lipase, hu ua gastric lipase, yog tsim los ntawm cov cell hauv koj lub plab. Qhov enzyme tshwj xeeb zom cov rog rog hauv koj cov zaub mov