Video: Qhov kev txhais lus ntawm secreted proteins tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev txhais lus tshwm sim ntawm cov chaw tshwj xeeb hauv cytoplasm; nws tshwm sim ntawm ribosomes. Ribosomes yog cov sib sau loj ntawm cov proteins thiab ribosomal RNA (rRNA). Li no peb hom RNA koom nrog hauv cov txheej txheem ntawm txhais lus tab sis tsuas yog ib qho ntawm lawv, mRNA, cov lej rau cov proteins.
Yog li ntawd, qhov twg secreted proteins quav?
Protein folding tshwm sim nyob rau hauv lub cellular compartment hu ua endoplasmic reticulum. Qhov no yog ib qho tseem ceeb ntawm cellular txheej txheem vim cov proteins yuav tsum raug muab tais rau hauv cov duab peb-dimensional tshwj xeeb kom ua haujlwm kom raug.
Tsis tas li ntawd, cov txheej txheem ntawm cov protein tso tawm yog dab tsi? Protein secretion . Protein secretion yog multistep txheej txheem uas suav nrog vesicle biogenesis, cargo loading, concentration thiab processing, vesicle transport and targeting, vesicle docking and Ca2+-dependent vesicular fusion with the plasma membrane.
Kuj kom paub, qhov twg txhais lus tshwm sim?
Nyob rau hauv ib tug prokaryotic cell, transcription thiab txhais lus ua ke; uas yog, txhais lus pib thaum lub mRNA tseem tab tom ua ke. Nyob rau hauv ib tug eukaryotic cell, transcription tshwm sim nyob rau hauv lub nucleus, thiab txhais lus tshwm sim hauv cytoplasm.
Qhov twg tsim cov ribosomal subunits tshwm sim?
Eukaryote cov ribosomes yog tsim thiab sib sau ua ke hauv cov nucleolus. Ribosomal proteins nkag mus rau hauv lub nucleolus thiab ua ke nrog plaub rRNA strands los tsim ob ribosomal subunits (ib qho me me thiab ib qho loj) uas yuav ua kom tiav ribosome (saib daim duab 1).
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev
Dab tsi tshwm sim ntawm Theodor Engelmann qhov kev sim nto moo qhia rau nws uas wavelength S yog tus tsav tsheb zoo tshaj plaws ntawm photosynthesis?
Cov kab mob sib sau ua ke ntau tshaj plaws nyob ze ntawm ib feem ntawm cov alga uas tau nthuav tawm cov xim liab thiab xiav wavelengths. Engelmann qhov kev sim ua kom pom tias lub teeb liab thiab xiav yog lub zog zoo tshaj plaws rau photosynthesis
Tus qauv yuav pab nrhiav qhov tshwm sim ntawm qhov kev tshwm sim sib xyaw li cas?
Lub ntsiab lus ntawm Qhov Muaj Peev Xwm Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej yog ib qho uas muaj ntau tshaj li qhov ua tau. Kev txiav txim siab qhov yuav tshwm sim ntawm qhov kev tshwm sim sib xyaw suav nrog kev nrhiav cov lej ntawm qhov tshwm sim ntawm tus kheej cov xwm txheej thiab, yog tias tsim nyog, tshem tawm qhov muaj feem sib tshooj
Qhov kev tshwm sim ua ntej txhais li cas ntawm kev kuaj DNA?
Dab tsi yog Qhov Ua Ntej Ua Ntej? Yog tias qhov kev ntsuam xyuas caj ces tsis suav nrog tus txiv neej kuaj, ces qhov tshwm sim ntawm leej txiv yuav poob mus rau 0%. Yog tias kev kuaj DNA tsis suav nrog tus txiv neej kuaj, qhov tshwm sim ntawm leej txiv yuav nce mus rau ntau dua 99%
Yuav ua li cas koj pom qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug?
Txhawm rau xam qhov tshwm sim ntawm qhov tshwm sim tshwm sim tsawg kawg ib zaug, nws yuav yog qhov sib ntxiv ntawm qhov xwm txheej tsis tshwm sim. Qhov no txhais tau hais tias qhov tshwm sim ntawm qhov tshwm sim yeej tsis tshwm sim thiab qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug yuav sib npaug, lossis 100% txoj hauv kev