Video: Dab tsi yog qhov tseem ceeb ntawm TCA lub voj voog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov TCA cycle plays lub luag haujlwm tseem ceeb hauv kev tawg, lossis catabolism, ntawm cov organic roj molecules-piv txwv li, qabzib thiab qee cov suab thaj, fatty acids, thiab qee cov amino acids. Ib zaug pub rau hauv TCA cycle , acetyl CoA hloov mus rau carbon dioxide thiab lub zog.
Tsuas yog li ntawd, qhov tseem ceeb ntawm TCA lub voj voog yog dab tsi?
Qhov tseem ceeb ntawm TCA lub voj voog. Qhov tseem ceeb ntawm lub voj voog citric acid yog ua raws li txoj hauv kev kawg rau oxidation ntawm carbohydrates, lipids thiab cov protein, txij li thaum qabzib , fatty acids thiab ntau cov amino acids yog tag nrho cov metabolised rau acetyl CoA.
Tsis tas li ntawd, lub luag haujlwm tseem ceeb ntawm TCA lub voj voog yog dab tsi? Cov Lub luag haujlwm tseem ceeb ntawm Krebs lub voj voog yog tsim cov khoom siv hluav taws xob uas tuaj yeem siv rau hauv cov kauj ruam kawg ntawm kev ua pa ntawm tes.
Yog li, vim li cas Oxaloacetate tseem ceeb hauv lub voj voog citric acid?
Oxaloacetate yog ib qho nruab nrab ntawm cov citric acid voj voog , qhov twg nws reacts nrog acetyl-CoA los tsim citrate, catalyzed los ntawm citrate synthase. Nws tseem koom nrog hauv gluconeogenesis, urea lub voj voog , glyoxylate lub voj voog , amino kua qaub synthesis, thiab rog kua qaub synthesis. Oxaloacetate Nws tseem yog ib tug muaj zog inhibitor ntawm complex II.
Vim li cas nws thiaj hu ua TCA cycle?
Nws yog hu ua tricarboxylic acid cycle vim cov citric acid yog ob qho tib si thawj cov khoom thiab qhov kawg reactant, thiab nws muaj peb pawg carboxyl.
Pom zoo:
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog txhais los ntawm lub voj voog ntawm tes lossis cell division voj voog?
Cell Cycle thiab Mitosis (hloov kho 2015) LUB CELL CYCLE Lub voj voog ntawm tes, lossis lub voj voog ntawm tes faib, yog cov xwm txheej uas tshwm sim hauv lub cell eukaryotic ntawm nws qhov tsim thiab lub sijhawm nws rov ua dua nws tus kheej. Interphase yog nyob nruab nrab ntawm lub sijhawm thaum lub cell faib
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Dab tsi ntawm lub voj voog ntawm tes yog qhov tseem ceeb tshaj plaws?
Ua ke, G1, S, thiab G2 theem ua rau lub sijhawm hu ua interphase. Cells feem ntau siv sij hawm ntau nyob rau hauv interphase dua li lawv ua hauv mitosis. Ntawm plaub theem, G1 yog qhov sib txawv tshaj plaws ntawm lub sijhawm, txawm hais tias nws feem ntau yog qhov ntev tshaj plaws ntawm lub voj voog ntawm tes (Daim duab 1)
Lub neej voj voog ntawm fern txawv ntawm lub neej voj voog ntawm moss li cas?
Qhov txawv: -- Mosses yog cov nroj tsuag uas tsis muaj vascular; ferns yog vascular. - Gametophyte yog lub cim tseem ceeb hauv mosses; sporophyte yog lub cim tseem ceeb hauv ferns. - Mosses muaj cov txiv neej thiab poj niam sib cais gametophytes; fern gametophytes muaj txiv neej thiab poj niam qhov chaw ntawm tib tsob nroj