Thaum ib tee ntawm methylene xiav tau qhia, lub nucleus yog stained, uas ua rau nws sawv thiab pom meej nyob rau hauv lub microscope. Txawm hais tias tag nrho cov xov tooj ntawm tes pom lub teeb xiav xim, lub nucleus ntawm qhov nruab nrab ntawm lub xovtoojyog qhov tsaus dua, uas tso cai rau nws txheeb xyuas.
Dab tsi organelle hauv cell stained qhov tsaus ntuj?
Nucleus. Ib micrograph ntawm cov tsiaj hlwb, qhia cov nucleus (stained dark red) ntawm txhua lub cell. Lub npe hu ua cell's "command center," lub nucleus yog ib lub organelle loj uas khaws cov cell DNA (deoxyribonucleic acid).
methylene xiav ua dab tsi rau cov hlwb?
Methylene xiav - stains tsiaj hlwb kom pom nuclei ntau dua. Neutral/Toluylene liab - stains nuclei liab thiab tej zaum yuav siv tau rau ntawm cov hlwb nyob.
Yuav ua li cas yog methylene xiav stain nyob rau hauv lub puab tsaig hlwb?
Methylene xiav stains negatively charged molecules hauv cell, suav nrog DNA thiab RNA. Cov xim no yog tshuaj lom thaum noj thiab nws ua rau khaus thaum sib cuag ntawm daim tawv nqaij thiab qhov muag. Cov hlwb pom yog squamous epithelial hlwb los ntawm txheej txheej epithelial ntawm lub qhov ncauj.
Dab tsi ntawm cov xov tooj ntawm tes stains ntau tshaj?
Cov nucleus (vim muaj DNA) thiab cov tawv nqaij endoplasmic reticulum los yog RER (vim ribosomes thiab RNA) stain intensely nrog hematoxylin.
