Video: Lub hom phiaj ntawm cell fractionation yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piav txog txheej txheem thiab lub hom phiaj ntawm cell fractionation . Tus kheej kev faib ua feem yog ib txoj kev uas yuav siv hlwb sib nrug thiab cais loj organelles thiab lwm yam sub cellular cov qauv ntawm ib leeg. Cov lub hom phiaj yog cais/fractionate cell cov khoom raws li qhov loj thiab qhov ntom.
Ntawm no, cell fractionation siv rau dab tsi?
Cell fractionation yog tus txheej txheem siv rau cais cellular Cheebtsam thaum khaws cia ib tus neeg ua haujlwm ntawm txhua yam khoom. Qhov no yog ib txoj kev uas yog Ameslikas siv rau ua qauv qhia cellular qhov chaw ntawm ntau yam txheej txheem biochemical.
Tsis tas li ntawd, cov cuab yeej twg siv los faib cov hlwb? centrifuge
Ua raws li qhov no, lub hauv paus ntsiab lus ntawm cell fractionation yog dab tsi?
Cov ntsiab lus ntawm cell fractionation thiab ultracentrifugation raws li siv los cais cell cov khoom. Cell fractionation yog phua hlwb mus rau hauv nws cov organelles. Cov ntaub so ntswg yog txiav thiab nce mus rau hauv cov dej khov txias, isotonic, tsis muaj tshuaj. Qhov no yog ces muab tso rau hauv ib tug blender kom tawg qhib lub hlwb uas yog hu ua 'homogenisation'.
Dab tsi yog intercellular junctions thiab yog vim li cas lawv tseem ceeb?
Plasmodesmata , nruj junctions , desmosomes , kev sib tshuam . Lawv tso cai rau kev sib txuas lus ntawm cov hlwb. Tso cai rau tej yam kis ntawm cov hlwb.
Pom zoo:
Dab tsi yog ob lub hom phiaj tseem ceeb ntawm lub voj voog citric acid?
Ob lub hom phiaj tseem ceeb ntawm lub voj voog citric acid yog: A) synthesis ntawm citrate thiab gluconeogenesis. B) degradation ntawm acetyl-CoA los tsim lub zog thiab muab cov precursors rau anabolism
Dab tsi yog qhov txawv ntawm daim ntawv qhia lub hom phiaj thiab daim ntawv qhia lub hom phiaj tshwj xeeb?
Qhov tseem ceeb hauv daim ntawv qhia dav dav yog nyob ntawm qhov chaw. Phab ntsa daim duab qhia chaw, feem ntau daim ntawv qhia pom nyob rau hauv atlases, thiab txoj kev maps yog tag nrho cov nyob rau hauv qeb no. Thematic maps, tseem hu ua daim ntawv qhia tshwj xeeb, qhia txog thaj chaw faib khoom ntawm ib lub ntsiab lus lossis qhov tshwm sim
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog junk DNA thiab nws lub hom phiaj yog dab tsi?
Hauv cov noob caj noob ces, lo lus khib nyiab DNA hais txog thaj tsam ntawm DNA uas tsis yog coding. Qee qhov DNA noncoding no yog siv los tsim cov khoom tsis yog RNA xws li hloov RNA, tswj RNA thiab ribosomal RNA
Hom phiaj phiaj xwm phiaj xwm yog Mercator daim ntawv qhia?
Mercator projection. Mercator projection, hom phiaj xwm phiaj xwm qhia hauv 1569 los ntawm Gerardus Mercator. Nws yog feem ntau piav raws li ib tug cylindrical projection, tab sis nws yuav tsum tau muab los ntawm lej