Video: Puas yog c4 thiab CAM cov nroj tsuag tib yam?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
C3 photosynthesis ua rau peb-carbon compound ntawm Calvin lub voj voog thaum C4 photosynthesis ua rau ib qho nruab nrab plaub-carbon compound uas splits rau hauv peb-carbon compound rau Calvin voj voog. Nroj tsuag uas siv CAM photosynthesis sau hnub ci thaum nruab hnub thiab kho cov pa roj carbon dioxide molecules thaum hmo ntuj.
Xav txog qhov no, qhov txawv ntawm c4 thiab CAM cov nroj tsuag yog dab tsi?
Lub ntsiab Qhov sib txawv ntawm C4 thiab CAM cov nroj tsuag yog txoj kev uas lawv txo cov dej poob. C4 cov nroj tsuag Hloov cov CO2 molecules kom txo qis photorespiration thaum CAM cov nroj tsuag xaiv thaum twg los rho tawm CO2 los ntawm ib puag ncig. Photorespiration yog txheej txheem uas tshwm sim hauv nroj tsuag qhov twg oxygen ntxiv rau RuBP tsis yog CO2.
Tom qab, lo lus nug yog, c3 c4 thiab CAM cov nroj tsuag zoo sib xws li cas? Cells koom nrog a C3 txoj hauv kev yog mesophyll hlwb thiab mus rau qhov ntawd C4 txoj hauv kev yog mesophyll cell, bundle sheath cells, tab sis CAM ua raws li ob leeg C3 thiab C4 nyob rau hauv tib lub mesophyll hlwb. C3 tuaj yeem pom hauv txhua qhov photosynthetic nroj tsuag , thaum C4 yog ua raws li tropical nroj tsuag thiab CAM los ntawm Semi-arid condition nroj tsuag.
Kuj kom paub, qhov sib txawv loj tshaj ntawm c4 thiab CAM txoj hauv kev yog dab tsi?
C4 cov nroj tsuag tsis txhob photorespiration los ntawm synthesizing qabzib hauv bundle sheath cells. CAM nroj tsuag tsis txhob photorespiration los ntawm synthesizing qabzib thaum hmo ntuj. CAM cov nroj tsuag siv crassulacean acid khaws CO2.
Yuav ua li cas c4 thiab CAM cov nroj tsuag tsis txhob Photorespiration?
Cov ntsiab lus tseem ceeb: Photorespiration yog ib txoj hauv kev pov tseg uas tshwm sim thaum Calvin lub voj voog enzyme rubisco ua rau oxygen es tsis yog carbon dioxide. Crassulacean acid metabolism ( CAM ) nroj tsuag txo qis photorespiration thiab txuag dej los ntawm kev sib cais cov kauj ruam hauv lub sijhawm, nruab nrab ntawm hmo ntuj thiab nruab hnub.
Pom zoo:
Dab tsi yog tib neeg engineering thiab tib neeg yam xwm txheej thiab ergonomics cuam tshuam li cas?
Ergonomics (lossis tib neeg yam tseem ceeb) yog kev qhuab qhia kev tshawb fawb txog kev nkag siab ntawm kev sib cuam tshuam ntawm tib neeg thiab lwm yam hauv lub cev, thiab kev ua haujlwm uas siv txoj kev xav, cov hauv paus ntsiab lus, cov ntaub ntawv thiab cov txheej txheem los tsim kom zoo rau tib neeg kev noj qab haus huv thiab kev ua haujlwm tag nrho
CAM cov nroj tsuag yog dab tsi thiab lawv qhov zoo dua yog dab tsi?
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Cov pa roj carbon fixation txawv hauv CAM cov nroj tsuag li cas?
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