Reaon: Orgnaic acids yog decarboxylated thaum hmo ntuj. Dab tsi yog qhov photosynthesis adaptation ntawm C4 nroj tsuag thiab CAM nroj tsuag zoo sib xws? Yog vim li cas: Stomata ntawm CAM cov nroj tsuag qhib thaum nruab hnub.
Cov nroj tsuag CAM puas siv Rubisco?
CAM cov nroj tsuag ib ntus cais cov pa roj carbon monoxide thiab lub voj voog Calvin. … Cov organic acid khaws cia kom txog rau hnub tom qab thiab tom qab ntawd tawg, tso cov pa roj carbon dioxide uas tuaj yeem ua tau kholos ntawm rubisco thiab nkag mus rau Calvin lub voj voog ua suab thaj.
CAM cov nroj tsuag photosynthesize li cas?
Crassulacean Acid Metabolism (CAM) Photosynthesis
Nyob hauv txoj kev no, stomata qhib thaum hmo ntuj , uas tso cai rau CO2 kom diffuse mus rau hauv nplooj kom ua ke nrog PEP thiab daim ntawv malate. Cov kua qaub no ces khaws cia rau hauv lub hauv paus loj vacuoles kom txog rau thaum nruab hnub. Thaum nruab hnub, malate raug tso tawm los ntawm vacuoles thiab decarboxylated.
CAM photosynthesis tshwm sim nyob qhov twg?
Crassulacean acid metabolism (CAM) yog ib qho photosynthetic hloov mus rau cov dej tsis tu ncua, tshwm sim hauv cov nroj tsuag hauv arid cheeb tsam (piv txwv li, cacti) lossis hauv chaw sov epiphytes (piv txwv li, orchids thiab bromeliads).
CAM cov nroj tsuag nyob qhov twg khaws cov organic acids lawv ua thaum hmo ntuj?
Photosynthetic productivity nyob rau hauv CAM cov nroj tsuag yog txwv los ntawm qhov txwv tsis pub muaj peev xwm ntawm lub vacuole rau khaws cia cov organic acids thaum hmo ntuj. Kom kov yeej qhov notxwv tsis pub, CAM cov nroj tsuag tsim cov loj photosynthetic hlwb nrog loj vacuoles los txhim kho cov pa roj carbon cia. Cov hlwb loj no ua rau cov nplooj muaj succulent morphology.
