Cov txheej txheem:

Koj yuav txheeb xyuas Gram staining bacteria li cas?
Koj yuav txheeb xyuas Gram staining bacteria li cas?

Video: Koj yuav txheeb xyuas Gram staining bacteria li cas?

Video: Koj yuav txheeb xyuas Gram staining bacteria li cas?
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Gram Stain Identification

  1. Thov thawj stain (ib liab stain hu ua crystal violet) mus rau lub tshav kub-tso smear ntawm a kab mob kab lis kev cai.
  2. Siv iodine rau saum cov siv lead ua violet.
  3. Ntxuav cov hlwb nrog cawv los yog acetone.
  4. Stain cov hlwb dua (counterstain) nrog cov xim liab, xws li safranin liab lossis yooj yim fuchsin.

Cov lus nug tseem yog, Gram staining pab txheeb xyuas cov kab mob li cas?

Gram staining sib txawv kab mob los ntawm cov tshuaj thiab lub cev ntawm lawv cov phab ntsa ntawm tes. Gram -zoo hlwb muaj txheej tuab ntawm peptidoglycan nyob rau hauv lub cell phab ntsa uas khaws cov thawj stain , siv lead ua violet.

Qhov thib ob, Gram stain qhia dab tsi? A Gram stain yog siv, nrog rau kab lis kev cai ntawm cov khoom siv los ntawm qhov chaw muaj kab mob, mus rau txheeb xyuas ua rau muaj kab mob. Cov Gram stain muab cov txiaj ntsig ua ntej ntawm seb puas muaj kab mob yog tam sim no thiab hom dav dav, xws li cov duab thiab seb lawv yog Gram - zoo los yog Gram - tsis zoo.

Raws li txoj cai, koj tuaj yeem qhia tau li cas yog tias tus kab mob Gram zoo lossis tsis zoo?

Gram - cov kab mob zoo tshwm xiav lossis violet thiab grams - kab mob tsis zoo tshwm liab liab. TSEEM CEEB: Yog cov smear yog tuab heev, cov hlwb tuaj yeem tshwm sim Gram - zoo hauv cheeb tsam tuab heev. Tej zaum koj yuav pom Gram -variability los ntawm tuab mus rau nyias qhov chaw.

Cov kab mob gram negative yog xim dab tsi?

Gram negative bacteria tshwm ib daj ntseg liab xim thaum pom nyob rau hauv ib lub teeb microscope nram qab no Gram staining. Qhov no yog vim cov qauv ntawm lawv cov phab ntsa ntawm tes tsis tuaj yeem khaws cov crystal violet stain li ntawd xim tsuas yog los ntawm safranin counterstain.

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