Video: Cov xim dab tsi yog cov hlwb feem ntau ua ntej siv thawj cov xim rau cov txheej txheem Gram stain?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua ntej, siv lead ua violet , ib tug thawj stain, yog siv rau lub tshav kub-taw smear, muab tag nrho cov hlwb a ntshav liab xim.
Xav txog qhov no, puas tuaj yeem ntxiv iodine ua ntej thawj qhov stain hauv Gram stain?
Tsis yog vim qhov iodine tso cai rau siv lead ua violet stain txhawm rau khi rau peptidoglycan hauv cov phab ntsa ntawm tes.
Ib yam li ntawd, cov xim dab tsi yuav gram tsis zoo tshwm sim yog tias Kauj Ruam 2 tau ua ua ntej kauj ruam 1 hauv Gram stain? dab tsi xim yuav Gram - Cov hlwb tsis zoo tshwm sim yog tias qib 2 tau ua ua ntej qib 1 hauv Gram stain ( yog koj ua qib 2 , qib 1 , kauj ruam 3, kauj ruam 4)? ob leeg Gram - zoo / tsis zoo yuav tshwm liab/liab. Gram - zoo yuav yuav tsis muaj xim tom qab ethanol yaug vim tias CV-I complex yuav tsis tsim nyob rau hauv qhov kev txiav txim no.
Qhov thib ob, dab tsi 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.
Vim li cas decolorization yog kauj ruam tseem ceeb tshaj plaws hauv Gram staining?
Cov theem decolourization yog cov kauj ruam tseem ceeb vim yog koj ua ntev dhau lawm koj yuav dag Gram cov kab mob tsis zoo thiab yog tias koj nyob rau hauv-decolurize, koj yuav tau txais cuav Gram cov kab mob zoo.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Dab tsi ntawm cov organic molecule feem ntau yog siv los ua lub zog rau cov hlwb?
Adenosine 5'-triphosphate, lossis ATP, yog cov khoom siv hluav taws xob ntau tshaj plaws hauv cov hlwb. Cov molecule no yog tsim los ntawm nitrogen puag (adenine), ribose qab zib, thiab peb pawg phosphate. Lo lus adenosine yog hais txog adenine ntxiv rau ribose qab zib
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?
Thaum cov kab mob gram zoo stain violet vim muaj cov txheej txheem peptidoglycan tuab nyob rau hauv cov phab ntsa ntawm lawv cov cell, cov kab mob gram tsis zoo stain liab, vim yog cov txheej peptidoglycan thinner hauv lawv cov phab ntsa ntawm tes (peptidoglycan txheej tuab dua tso cai rau cov kab mob gram zoo stains violet. tuav lub stain, tab sis ib txheej nyias
Dab tsi yog txheej txheem xav kom tsim tau cov magmas feem ntau?
Dab tsi yog cov txheej txheem uas xav tias tsim kom muaj cov magmas feem ntau? Feem ntau cov granitic magma tej zaum tsim thaum kub basaltic magma pas dej ua daig vim hais tias ntawm kuj zoo kawg ceev, hauv qab no lub continental ua kiav txhab
Cov txheej txheem dab tsi uas tus kws tshawb fawb siv los tsim ntau cov ntawv luam ntawm DNA xav tau sau rau hauv daim ntawv dawb paug 1?
Molecular Cloning. Cloning tso cai rau tsim ntau cov ntawv luam ntawm cov noob, qhia cov noob, thiab kawm txog cov noob tshwj xeeb. Yuav kom tau txais cov DNA tawg rau hauv cov kab mob hauv cov kab mob hauv daim ntawv uas yuav tau theej lossis nthuav tawm, cov khoom tawg yog thawj zaug tso rau hauv plasmid