Video: Dab tsi yog txhais los ntawm staining hauv science?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
staining Ib txoj hauv kev uas cov hlwb los yog nyias ntu ntawm cov ntaub so ntswg uas ib txwm pob tshab tau muab tso rau hauv ib lossis ntau xim dyes ( stains ) ua kom lawv pom meej dua los ntawm lub tshuab tsom. Kev zas xim ua kom qhov sib txawv ntawm ntau yam ntawm tes los yog cov ntaub so ntswg.
Tsis tas li ntawd, dab tsi yog staining hauv science?
Kev zas xim yog cov txheej txheem siv los txhim kho qhov sib piv hauv cov qauv, feem ntau ntawm qib microscopic. Stains tej zaum yuav raug siv los txhais cov ntaub so ntswg lom (tshwj xeeb, piv txwv li, cov nqaij fibers lossis cov ntaub so ntswg sib txuas), cov neeg ntawm tes (kev faib cov qe ntshav sib txawv), lossis cov organelles hauv ib lub hlwb.
Ib sab saum toj no, lub hom phiaj ntawm staining yog dab tsi? Qhov tseem ceeb tshaj plaws yog vim li cas hlwb ua qias neeg yog txhawm rau txhim kho kev pom ntawm lub xovtooj ntawm tes lossis qee yam ntawm tes hauv qab lub tshuab tsom. Cells kuj yuav yog ua qias neeg txhawm rau hais txog cov txheej txheem metabolic lossis sib txawv ntawm cov nyob thiab cov hlwb tuag hauv cov qauv.
Ib yam li ntawd, nws yog nug, dab tsi yog staining thiab nws hom?
Hom ntawm txawv Kev zas xim Cov txheej txheem ntawm Microorganisms. Kev zas xim : Kev zas xim tsuas yog txhais tau hais tias xim ntawm cov kab mob micro nrog cov xim uas qhia txog thiab qhia txog cov qauv tseem ceeb ntawm cov kab mob xws li kab mob, kab mob, protozoa thiab lwm yam.
Cov stains tseem ceeb yog dab tsi?
Nws yog yuav luag txhua qhov kev sim thawj zaug ua rau kev txheeb xyuas cov kab mob. Cov thawj stain ntawm Gram txoj kev yog siv lead ua violet. Cov kab mob cell phab ntsa yog stained los ntawm crystal violet. Tom qab ntawd iodine yog ntxiv los ua ib qho mordant los ua cov siv lead ua violet-iodine complex kom cov xim tsis tuaj yeem raug tshem tawm yooj yim.
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