Qhov sib txawv tseem ceeb ntawm tus kab mob thiab prion yog tus kab mob no yog cov kab mob me me uas muaj cov nucleic acids thiab lub tsho tiv thaiv protein thaum lub prion yog cov kab mob me me uas muaj cov protein ntau.
Muaj ntau hom kab mob lom neeg kawm los ntawm microbiologists. Ntawm lawv, tus kab mob thiab prion yog ob hom kab mob acellular. Lawv tsis raug suav hais tias yog cov kab mob muaj sia vim lawv qhia cov yam ntxwv tsis muaj sia nyob ntau dua li cov yam ntxwv muaj sia nyob. Ib yam li ntawd, lawv tsis muaj ribosomes thiab enzymes los tsim cov proteins. Yog li ntawd, lawv xav tau cov kab mob uas muaj sia nyob (tus tswv tsev) kom sib npaug. Tsis tas li ntawd, lawv tsis tuaj yeem pom nyob rau hauv lub teeb tsom iav, thiab lawv tsis tuaj yeem lim tawm los ntawm Chamberland lim. Ntxiv mus, lawv tsis yog culturable nyob rau hauv nutrient media. Qhov sib txawv ntawm tus kab mob thiab prion feem ntau yog vim lawv muaj pes tsawg leeg. Cov kab mob muaj cov nucleic acids thiab cov proteins thaum prions tsuas muaj cov proteins xwb. Ib yam li ntawd, muaj ntau qhov sib txawv ntawm tus kab mob thiab prion uas tsab xov xwm no yuav tham txog.
Virus yog dab tsi?
Kab mob yog qhov loj me nanometer kis kab mob uas tsim cov txheej txheem protein thiab nucleic acids. Yog li, cov kab mob nucleic acids tuaj yeem yog DNA lossis RNA. Nucleic acids tuaj yeem ua ib leeg lossis ob txoj hlua khi. Tsis tas li ntawd, lawv tuaj yeem yog linear lossis ncig lossis segmented. Raws li txoj cai, nucleic acids tseem tiv thaiv hauv cov protein capsid. Protein capsid tej zaum yuav muaj spikes thiab tails. Cov spikes thiab tails pab cov kab mob mus txuas nrog cov tswv tsev.
Raws li cov protein capsid kev npaj, cov kab mob muaj cov duab sib txawv xws li helical, icosahedral, polyhedral thiab cov qauv nyuaj. Lwm yam tshaj li cov nucleic acids thiab protein capsid, qee cov kab mob muaj ib lub hnab ntawv uas kaw cov nucleocapsid. Yog li, muaj cov kab mob hauv lub hnab thaum lwm tus yog tus kab mob liab qab. Siv cov nucleic acids no, cov kab mob sib kis hauv cov kab mob uas muaj sia nyob (tus tswv tsev) ntawm tsib kauj ruam; Symptoms, nkag mus, replication thiab synthesis, sib dhos thiab tso tawm. Yog li ntawd, lawv yog cov kab mob parasites. Hauv cov lus yooj yooj yim, cov kab mob xav tau tus tswv tsev nyob los ua cov protein ntau thiab ntau ntxiv.
Daim duab 01: Virus
Muaj ntau hom kab mob raws li tus tswv tsev kab mob uas lawv siv los sib faib. Ib hom kab mob bacteriophage yog ib hom kab mob uas kis kab mob. Mycoviruses kis cov kab mob fungi thaum cov kab mob archaeal kis mus rau archaea. Tsis tas li ntawd, muaj kab mob tsiaj, kab mob nroj tsuag, kab mob protists, thiab mammalian endogenous retroviruses. Raws li lub npe qhia, cov kab mob no siv cov kab mob sib txawv los ua kom ntau ntxiv thaum ua rau muaj kab mob rau lawv.
Prion yog dab tsi?
Prion yog ib qho chaw subviral uas tsim los ntawm cov protein xwb. Yooj yim, nws yog ib qho proteinaceous kis kab mob uas yog acellular. Prion tsis muaj DNA lossis RNA. Yog li ntawd lawv tsis muaj noob. Qhov no yog tus cwj pwm txawv ntawm prions uas cais prions los ntawm cov kab mob. Kuj ceeb tias, prion proteins yog cov proteins uas tsis muaj teeb meem uas muaj nyob hauv cov tsiaj thiab noog. Tab sis cov proteins no nyob hauv daim ntawv txawv txav, thiab thaum lawv nkag mus rau tib neeg lub hlwb, lawv muaj peev xwm ua rau mob hlwb loj.
Daim duab 02: Prion
Feem ntau cov prions tau noj, tab sis lawv kuj tau tsim los ntawm kev hloov pauv ntawm cov noob uas muaj cov protein no. Thaum prion pom lawv txoj kev mus rau hauv lub hlwb, lawv ua rau cov proteins ib txwm hloov mus rau qhov txawv txav. Tom qab ntawd, tsis ntev lawv yuav ua rau muaj kab mob loj heev hauv lub hlwb. Vim yog tus kab mob no, qee qhov tshwm sim hauv lub hlwb uas tsuas yog kho tau los ntawm kev siv tshuaj tua hluav taws. Qee cov kab mob tshwm sim los ntawm prion yog Mad Cow Disease, Scrapie nyob rau hauv yaj thiab tshis, kab mob nyob rau hauv mos lwj thiab elk, kuru thiab Creutz-Jakob kab mob. Txawm li cas los xij, prions tsis ua rau muaj kab mob hauv cov nroj tsuag, tsis zoo li cov kab mob. Txawm hais tias prion ua rau cov kab mob hauv tib neeg thiab lwm yam tsiaj, cov kab mob prion yog qhov tsawg heev. Tsis tas li ntawd, tsis muaj kev kho tshwj xeeb rau cov kab mob prion. Vim tias prions tiv taus rau feem ntau ntawm txoj kev ua kom tsis muaj menyuam xws li tshav kub, hluav taws xob, tshuaj, thiab lwm yam.
Dab tsi zoo sib xws ntawm Virus thiab Prion?
- Virus thiab prion yog cov tsis muaj sia nyob.
- Tsis tas li ntawd, lawv yog acellular.
- Virus thiab prion yog teeb meem.
- Ob leeg ua rau muaj ntau yam kab mob rau tib neeg thiab lwm yam kab mob.
- Tshwj xeeb, lawv xav tau lub cev muaj kab mob sib npaug.
- Vim li no, lawv yog cov kab mob uas yuav tsum tau ua.
- Ntxiv mus, ob qho tib si tsis muaj ribosomes.
- Tab sis, ob leeg muaj cov proteins.
- Tsis tas li ntawd, lawv me me, txawm tias me dua li cov kab mob.
Qhov txawv ntawm tus kab mob thiab Prion yog dab tsi?
Virus yog cov kab mob sib kis tau los ntawm cov nucleic acids thiab cov proteins thaum prion yog cov kab mob sib kis uas tsim los ntawm cov protein xwb. Qhov no yog qhov sib txawv tseem ceeb ntawm tus kab mob thiab prion. Tsis tas li ntawd, cov kab mob kis tau tshwm sim thaum cov kab mob prion tsis tshua muaj. Ntxiv mus, prion ua rau cov kab mob rau tib neeg thiab tsiaj txhu thaum tus kab mob ua rau cov tsiaj, nroj tsuag, fungi, kab mob, protists thiab archaea. Li no, qhov no kuj yog qhov txawv ntawm tus kab mob thiab prion.
Cov lus qhia hauv qab no ntawm qhov sib txawv ntawm tus kab mob thiab prion qhia qhov sib txawv kom meej meej hauv daim ntawv teev npe.
Summary – Virus vs Prion
Virus thiab prion yog ob hom kab mob sib kis, uas yog acellular thiab tsis nyob. Qhov sib txawv tseem ceeb ntawm tus kab mob thiab prion yog tus kab mob no muaj cov nucleic acids thiab cov proteins thaum prion tsuas yog tsim los ntawm cov protein. Prion tsis muaj DNA lossis RNA thaum cov kab mob muaj cov nucleic acids DNA lossis RNA. Tsis tas li ntawd, tus kab mob no ua rau muaj kab mob rau tsiaj, nroj tsuag, kab mob, protists, archaea, thiab lwm yam thaum prion ua rau kab mob rau tib neeg thiab tsiaj xwb.
