Dab tsi yog qhov sib txawv ntawm photosynthesis?
Dab tsi yog qhov sib txawv ntawm photosynthesis?

Video: Dab tsi yog qhov sib txawv ntawm photosynthesis?

Video: Dab tsi yog qhov sib txawv ntawm photosynthesis?
Video: Qhov Sib Txawv Ntawm Allergy, Flu & Coronavirus Yog Dab Tsi 2024, Kaum ib hlis
Anonim

Muaj ob hom photosynthetic txheej txheem: oxygenic photosynthesis thiab anoxygenic photosynthesis . Cov ntsiab cai dav dav ntawm anoxygenic thiab oxygenic photosynthesis zoo sib xws, tab sis oxygenic photosynthesis Nws yog feem ntau pom nyob rau hauv cov nroj tsuag, algae thiab cyanobacteria.

Raws li txoj cai, 3 hom photosynthesis yog dab tsi thiab lawv txawv li cas?

Peb lub ntsiab hom photosynthesis yog C 3 , C4, thiab CAM (crassulacean acid metabolism). Hauv tsev kawm ntawv qib siab kuv muaj rau cim qee qhov ntawm lawv txoj hauv kev thiab cov txheej txheem, tab sis kuv yuav highlight dab tsi ua rau ib tug zoo dua lwm tus thiab dab tsi hom ntawm cov qoob loo, zaub mov, thiab cov nroj tsuag tau tshwj xeeb C 3 thiab C4 photosynthesis.

Ib yam li ntawd, qhov txawv ntawm ib tsob nroj c3 thiab c4 yog dab tsi? C3 cov nroj tsuag yog cov nroj tsuag qhov twg thawj cov khoom ntawm photosynthesis yog 3 carbon compound piv txwv li phosphoglyceric acid (PGA) thaum C4 cov nroj tsuag yog cov nroj tsuag qhov twg thawj cov khoom ntawm photosynthesis yog 4 carbon compound i.e oxaloacetic acid (OAA).

Yog li ntawd, hom photosynthesis feem ntau cov nroj tsuag siv li cas?

Feem ntau neeg paub qhov ntawd cov nroj tsuag siv photosynthesis tsim kom muaj zog siv hnub ci. Txawm li cas los xij, txheej txheem ntawm photosynthesis sib txawv ntawm nroj tsuag , nyob ntawm seb lawv nyob li cas. Peb qhov tseem ceeb hom photosynthesis yog C3, C4 thiab CAM photosynthesis.

Dab tsi yog qhov txawv ntawm cov nroj tsuag c4 thiab CAM?

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.

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