Lub ntsiab lus ntawm Gram positive bacteria yog dab tsi?
Lub ntsiab lus ntawm Gram positive bacteria yog dab tsi?

Video: Lub ntsiab lus ntawm Gram positive bacteria yog dab tsi?

Video: Lub ntsiab lus ntawm Gram positive bacteria yog dab tsi?
Video: BEST MOMENTS MODERN FAMILY - Part 1 2024, Kaum ib hlis
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Kho mob Txhais Gram - zoo

Gram - zoo : Gram - cov kab mob zoo khaws cov xim ntawm crystal violet stain hauv Gram stain . Qhov no yog yam ntxwv ntawm kab mob uas muaj cov phab ntsa ntawm tes tsim los ntawm cov txheej tuab ntawm cov khoom tshwj xeeb (hu ua peptidologlycan)

Raws li txoj cai, qhov sib txawv ntawm cov kab mob gram zoo thiab gram negative yog dab tsi?

Cov kab mob Gram zoo muaj cov phab ntsa ntawm tes tsim los ntawm cov txheej tuab ntawm peptidoglycan. Gram zoo cov hlwb stain ntshav thaum raug rau a Gram txheej txheem stain. Gram negative bacteria muaj cov phab ntsa ntawm tes nrog ib txheej nyias ntawm peptidoglycan.

Ib sab saum toj no, puas muaj kab mob Gram zoo puas tsuaj? Gram - zoo Cov kab mob feem ntau tsis tshua muaj hnyav vim tias tib neeg lub cev tsis muaj peptidoglycan, thiab qhov tseeb tib neeg lub cev tsim cov enzyme hu ua lysozyme uas tawm tsam qhov qhib peptidoglycan txheej. Gram - cov kab mob zoo.

Tib neeg kuj nug, lub ntsiab lus ntawm cov kab mob gram negative yog dab tsi?

Kho mob Txhais Gram - tsis zoo Gram - tsis zoo : Gram - kab mob tsis zoo plam lub crystal violet stain (thiab noj cov xim liab counterstain) hauv Gram cov txoj kev staining. Qhov no yog yam ntxwv ntawm kab mob uas muaj cov phab ntsa ntawm tes tsim los ntawm cov txheej nyias nyias ntawm ib yam khoom (hu ua peptidoglycan).

Vim li cas qee cov kab mob Gram zoo?

Nyob rau hauv lub microscope, grams - cov kab mob zoo tshwm liab doog-xiav vim lawv tuab peptidoglycan membrane tuaj yeem tuav tus xim. Cov kab mob hu ua grams - zoo vim qhov zoo tshwm sim. Gram - tsis zoo kab mob stain liab-liab. Lawv txheej peptidoglycan yog thinner, yog li nws tsis khaws cia tus xiav xim.

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