Video: Qhov twg invertase originate?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Rau industrial siv, invertase yog feem ntau muab tau los ntawm cov poov xab. Nws yog kuj synthesized los ntawm muv, uas siv nws los ua zib mu los ntawm nectar. Qhov kub zoo tshaj plaws ntawm tus nqi ntawm cov tshuaj tiv thaiv yog ntawm nws qhov loj tshaj yog 60 ° C thiab qhov zoo tshaj pH ntawm 4.5. Feem ntau, qab zib yog inverted nrog sulfuric acid.
Xav txog qhov no, qhov twg invertase pom?
Cov enzyme invertase yog pom nyob rau hauv peb lub qhov ncauj, thiab pib cov txheej txheem ntawm chemical digestion. Cov enzyme pab hauv hydrolysis ntawm sucrose.
Ib yam li ntawd, qhov khoom ntawm invertase yog dab tsi? Invertase yog ib qho enzyme tsim los ntawm cov poov xab uas catalyzes hydrolysis ntawm sucrose, tsim invert qab zib. Kev ua haujlwm ntawm invertase Nws yog ib qho tsim nyog los zom cov piam thaj rau hauv kev sib xyaw ntawm qabzib thiab fructose.
Yog li ntawd, thaum twg invertase nrhiav tau?
Chemists thaum xyoo 1800s tau kawm txog cov txiaj ntsig ntawm cov poov xab rau cov suab thaj thiab pom tau tias ua ntej cov piam thaj pib fermenting, nws hloov daim ntawv. Tom qab kev tshawb fawb ntau, cov kws kho mob cais cov enzyme uas ua rau qhov no: invertase . Los ntawm xyoo 1900, tus txheej txheem rau muab invertase los ntawm cov poov xab tau nquag siv.
Puas yog invertase protein?
Mung taum seedling invertase yog a protein ntau Ntawm 70 kDa uas yog heterodimer ntawm 38 thiab 30 kDa subunits. Lub cDNA ntawm cov enzyme no muaj cov thawj coj ua raws li 101 amino acids uas tsis muaj los ntawm cov laus. protein ntau (Arai et al., 1992).
Pom zoo:
Qhov txawv ntawm qhov muag tub ceev xwm thiab raug kaw qhov twg?
Nyob rau hauv ib tug foreclosure auction, ib tug qiv yog muag ib lub cuab tam nws repossessed, whereas nyob rau hauv ib tug tub ceev xwm muag, cov cuab yeej tau repossessed los ntawm ib tug qiv los ntawm lub tsev hais plaub txiav txim. Kalifonias ua haujlwm rau kev kaw tsis yog kev txiav txim plaub ntug uas txhais tau hais tias tus qiv nyiaj tsis xav tau lub tsev hais plaub kom txeeb thiab muag koj lub tsev
Qhov twg ntawm tsib qhov mob ntawm raug kaw yog hais txog tus neeg raug kaw qhov kev ywj pheej uas ua rau muaj kev xav ntawm kev raug kaw hauv zej zog?
Kev mob ntawm kev raug kaw: Tsib yam kev mob tshwm sim los ntawm kev raug kaw: kev ywj pheej, khoom siv thiab kev pabcuam, kev sib raug zoo ntawm kev sib deev, kev ywj pheej, thiab kev ruaj ntseg. Kev ywj pheej ntawm kev ywj pheej yog hais txog tus neeg raug kaw qhov kev poob ntawm kev ywj pheej, uas, raws li Sykes, tsim kev xav ntawm kev ua neeg tawm tsam
Qhov loj ntawm qhov loj ntawm tsob ntoo tuaj qhov twg?
Yog li ntawd qhov loj los ntawm qhov twg? Qhov loj ntawm tsob ntoo feem ntau yog carbon. Cov pa roj carbon los ntawm carbon dioxide siv thaum lub sijhawm photosynthesis. Thaum lub sij hawm photosynthesis, cov nroj tsuag hloov lub hnub lub zog mus rau hauv tshuaj zog uas yog ntes nyob rau hauv lub bonds ntawm carbon molecules ua los ntawm atmospheric carbon dioxide thiab dej
Thaum twg thiab qhov twg commission coj lub tswvyim ntawm kev txhim kho kom ruaj khov?
Lub Brundtland Commission tau ua tiav nyob rau lub Kaum Ob Hlis 1987 tom qab tshaj tawm Peb Lub Neej Yav Tom Ntej, tseem hu ua Brundtland Report, thaum Lub Kaum Hli 1987. Cov ntaub ntawv tau nrov (thiab txhais) lo lus 'Sustainable Development'
Dab tsi yog qhov txawv ntawm qhov cuam tshuam qhov (socket) thiab lub qhov (socket) pa?
Rau kuv qhov kev paub qhov sib txawv yog nqes mus rau cov khoom siv Qhov saum npoo-hardening ua rau muaj kev cuam tshuam cov qhov (socket) kom nqus tau qhov hloov pauv tam sim ntawd (aka 'kev cuam tshuam') zoo dua. Nrog rau kev cuam tshuam txaus txaus, lub qhov (socket) tsis tu ncua tuaj yeem tawm ntawm cov duab vim tias cov hlau siv muaj softer