Dab tsi yog thawj cov khoom ruaj khov ntawm carbon assimilation?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Thaum photosynthesis raug tso tseg tom qab ob vib nas this, cov khoom siv hluav taws xob tseem ceeb yog PGA, yog li ntawd tau txheeb xyuas tias yog thawj qhov chaw ruaj khov tsim thaum lub sijhawm carbon dioxide fixation nyob rau hauv ntsuab nroj tsuag. PGA yog peb-carbon compound, thiab hom ntawm photosynthesis yog li hu ua C₃.

Ib yam li ntawd, thawj cov khoom ntawm carbon fixation yog dab tsi?

"C₄" hais txog plaub- carbon molecule uas yog thawj cov khoom ntawm hom no carbon fixation.

Kuj Paub, cov khoom ntawm carbon fixation yog dab tsi? Hauv cov pa roj carbon fixation theem, carbon dioxide Nws txuas nrog RuBP los ntawm enzyme rubisco. Qhov tshwm sim 6-carbon cov khoom sai sai faib ua ob lub molecules ntawm peb-carbon compound (3-phosphoglycerate). Thaum peb carbon dioxide molecules nkag mus rau hauv lub voj voog, rau molecules ntawm 3-phosphoglycerate yog tsim.

Ntxiv mus, dab tsi yog thawj qhov khoom ruaj khov ntawm Calvin voj voog?

phosphoglyceric acid

Dab tsi yog carbon assimilation hauv cov nroj tsuag?

Cov pa roj carbon fixation los yog sarbon assimilation yog cov txheej txheem hloov dua siab tshiab ntawm inorganic carbon ( carbon dioxide) rau cov organic tebchaw los ntawm cov kab mob nyob. Cov piv txwv tseem ceeb tshaj plaws yog photosynthesis, txawm tias chemosynthesis yog lwm hom carbon fixation uas tuaj yeem tshwm sim thaum tsis muaj hnub ci.