Video: Vim li cas peb thiaj cia siab tias cov kab mob Gram tsis zoo yuav stain liab liab thaum lub sij hawm Gram staining txheej txheem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li qhov gram zoo kab mob stain violet raws li qhov tshwm sim ntawm lub xub ntiag ntawm tuab peptidoglycan txheej hauv cov phab ntsa ntawm lawv cov cell, lub gram negative kab mob stain liab , vim lub thinner peptidoglycan txheej hauv lawv cov phab ntsa ntawm tes (ib txheej tuab peptidoglycan tso cai rau khaws cia ntawm cov stain , tab sis ib txheej nyias
Yog li ntawd, yog vim li cas tej zaum yuav ib tug gram zoo cell stain liab?
Gram - cov hlwb zoo muaj ib tug tuab txheej ntawm peptidoglycan nyob rau hauv lub cell phab ntsa uas khaws cov thawj stain , siv lead ua violet. Gram - tsis zoo hlwb muaj txheej nyias nyias peptidoglycan uas tso cai rau cov siv lead ua violet ntxuav tawm. Lawv yog ua qias neeg liab lub liab los ntawm counterstain, feem ntau safranin lossis fuchsine.
Tsis tas li ntawd, cov kab mob Gram tsis zoo li cas tom qab iodine? Hauv daim ntawv cog lus Gram tsis zoo cov kab mob muaj ob lub cell nyias nyias nrog nyias peptidoglycan txheej ntawm lawv. Txhawm rau nqa tawm Gram stain, cov kab mob yog thawj zaug ntxuav hauv cov xim ntshav hu ua crystal violet ua raws li iodine. iodine thiab crystal violet tsim cov complexes loj uas khi rau lub cell thiab tig nws liab doog.
Ib sab ntawm no, vim li cas cov kab mob Gram tsis zoo tshwm sim liab?
A Gram zoo kab mob yuav tsum muab ib tug ntshav stain. Qhov no yog vim hais tias txheej tuab ntawm Peptidoglycan khaws cov ntshav siv lead ua violet stain. A Gram negative bacteria yuav tsum muab ib liab stain. Qhov no yog vim nws tsis khaws cov crystal violet vim tias cov txheej peptidoglycan nyob rau hauv periplasm.
Cov kauj ruam twg yog qhov tseem ceeb tshaj plaws hauv Gram staining?
Lub thickness ntawm smear siv nyob rau hauv lub Gram stain yuav cuam tshuam qhov tshwm sim ntawm stain . Cov kauj ruam uas yog tseem ceeb tshaj plaws hauv kev cuam tshuam qhov tshwm sim ntawm cov stain yog decolorizing kauj ruam.
Pom zoo:
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Koj tuaj yeem ua li cas yog tias koj tsis paub tias txheej twg yog nyob rau hauv cov txheej txheem rho tawm?
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Vim li cas cov kab mob Gram tsis zoo tshwm liab liab thaum cov kab mob Gram zoo pom ntshav liab?
Gram zoo hlwb stain ntshav vim lawv cov peptotidoglycan txheej yog tuab txaus, txhais tau tias tag nrho cov kab mob Gram zoo yuav khaws lawv cov stain. Gram tsis zoo hlwb stain liab vim lawv muaj ib tug nyias peptidoglycan phab ntsa, thiab lawv yuav tsis khaws ib yam ntawm cov ntshav stain los ntawm crystal violet
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