2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2023-12-17 02:46
Kev tsim ntawm Bilirubin Kwv yees, 80% ntawm bilirubin yog tsim los ntawm kev tawg ntawm hemoglobin hauv senescent cov qe ntshav liab, thiab ua kom puas erythroid hlwb hauv pob txha pob txha. Cov seem yog tshwm sim los ntawm kev hloov pauv ntawm ntau yam heme-muaj protein ntau pom nyob rau hauv lwm cov ntaub so ntswg, feem ntau ntawm daim siab thiab cov leeg.
bilirubin tsim los ntawm dab tsi?
Bilirubin yog xim daj daj muaj nyob hauv cov kua tsib. Nws yog tsim thaum lub siab tawg cov qe ntshav liab qub. Bilirubin raug tshem tawm ntawm lub cev los ntawm cov quav (quav) thiab muab cov quav tso rau nws cov xim ib txwm muaj.
Qhov twg hemoglobin tawg mus rau hauv bilirubin?
Bilirubin, cov xim daj daj daj ntawm cov kua tsib, zais los ntawm lub siab hauv vertebrates, uas muab rau cov khoom pov tseg (quav) lawv cov xim xim. Nws yog tsim nyob rau hauv cov pob txha hlwb thiab nyob rau hauv daim siab raws li qhov kawg khoom ntawm cov ntshav liab-cell (hemoglobin) puas.
Dab tsi hloov heme rau bilirubin?
Senescent erythrocytes yog phagocytosed thiab degraded loj los ntawm macrophages tam sim no nyob rau hauv tus po thiab daim siab. Hauv cov hlwb no, Heme yog thawj zaug hloov mus rau bilirubin hauv ob-kauj ruam enzymatic txheej txheem uas ua haujlwm " Biliverdin" ua ib qho nruab nrab. … Cov macrophages tom qab ntawd tso tawm cov txiaj ntsig bilirubin rau hauv plasma.
Yuav ua li cas conjugated bilirubin yogtsim?
Nyob rau hauv cov hlab ntsha, unconjugated bilirubin khi rau albumin los pab nws thauj mus rau daim siab. Ib zaug hauv daim siab, glucuronic acid ntxiv rau unconjugated bilirubin los ntawm enzyme glucuronyl transferase. Qhov no tsim conjugated bilirubin, uas yog soluble.
Bilirubin Metabolism Simplified
Pom zoo:
Thaum lub sijhawm ua pa ntawm tes uas ntawm cov hauv qab no tso tawm los ntawm cov khoom lag luam?
Thaum lub sijhawm ua pa aerobic cellular, qabzib reacts nrog oxygen, tsim ATP uas tuaj yeem siv los ntawm tes. carbon dioxide thiab dej yog tsim los ntawm cov khoom lag luam. Hauv kev ua pa ntawm tes, qabzib thiab oxygen hnov qab tsim ATP.
Los ntawm cov khoom tsim thaum lub sij hawm tsim cov bakelite yog?
Nyob rau hauv rooj plaub ntawm bakelite phenol thiab formaldehyde condense los tsim cov monomer muab H2O raws li cov khoom lag luam. Bakelite tseem hu ua co-polymer. Cov tshuaj tiv thaiv: Phenol reacts nrog formaldehyde los tsim o-Hydroxy methyl phenol.
Thaum lub sijhawm tsis zoo paramecium tsim tawm los ntawm?
Kev sib deev sib deev (binary fission) Feem ntau, paramecia reproduce asexually los ntawm kev faib ib lub cell mus rau hauv ob lub hlwb, txheej txheem hu ua "Binary Fission". Binary Fission tshwm sim thaum muaj cov as-ham txaus. Raws li cov xwm txheej zoo, lawv tuaj yeem faib ob lossis peb zaug hauv ib hnub.
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Lub sijhawm nyob qhov twg ntawm lub sijhawm teem sijhawm?
kab kab rov tav ntawm lub rooj ntu ntu yog hu ua ntu ntu. Lub sijhawm nyob rau ntawm lub sijhawm nyob qhov twg? Ib lub sijhawm yog kab kab rov tav ntawm lub rooj ntu ntu. Muaj xya lub sij hawm nyob rau hauv lub sij hawm ntawm lub sij hawm, nrog txhua tus pib ntawm sab laug.
