![Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi? Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14110703-what-is-the-function-of-phloem-tissue-in-the-plant-transport-system-j.webp)
Video: Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi?
![Video: Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi? Video: Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi?](https://i.ytimg.com/vi/_9-40PVJzO0/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Phloem yog cov leeg nqaij ua lub luag haujlwm thauj cov suab thaj los ntawm cov ntaub so ntswg (piv txwv li duab liab qab nplooj hlwb) kom cov ntaub so ntswg (ex. non-photosynthetic cag hlwb lossis tsim paj). Lwm cov molecules xws li cov protein thiab mRNAs tseem raug thauj thoob plaws tsob ntoo ntawm phloem.
Yog li ntawd, dab tsi yog lub luag haujlwm tseem ceeb ntawm xylem cov ntaub so ntswg hauv cov nroj tsuag thauj?
Xylem yog ib qho ntawm ob hom kev thauj cov ntaub so ntswg hauv vascular nroj tsuag, phloem yog lwm yam. Lub luag haujlwm tseem ceeb ntawm xylem yog thauj dej los ntawm hauv paus mus rau cov thiab nplooj , tab sis nws tseem thauj mus los cov as -ham.
Tsis tas li, cov ntaub so ntswg phloem pom nyob hauv cov nroj tsuag nyob qhov twg? Phloem parenchyma hlwb, hu ua hloov hlwb thiab ciam teb parenchyma hlwb, nyob ze ntawm cov ceg zoo tshaj plaws thiab kev txiav tawm ntawm cov hlab ntsha hauv cov nplooj nplooj, uas lawv kuj ua haujlwm hauv kev thauj khoom noj. Phloem fibers yog hloov tau ntev lub hlwb uas tsim cov mos fibers (piv txwv li, flax thiab hemp) ntawm kev lag luam.
Hauv qhov no, phloem thauj ua haujlwm li cas?
Phloem yog cov ntaub so ntswg uas txav zaub mov thoob plaws hauv tsob ntoo. Nws ua qhov no dhau los ntawm cov raj uas txuas cov suab thaj (xws li nplooj) rau cov piam thaj (xws li cov txiv hmab txiv ntoo loj hlob, qia thiab hauv paus). Phloem tuaj yeem ua los ntawm sieve hlwb, sieve raj thiab sieve daim hlau.
Yuav ua li cas yog tias cov ntaub so ntswg phloem puas hauv cov nroj tsuag?
Cov cov ntaub so ntswg hu ua phloem pab nqa cov zaub mov uas tau npaj lossis tsim tawm los ntawm nplooj mus rau lwm thaj tsam ntawm cog . Yog li, nws yog phloem tau puas los yog tau txais puas , ces tsis muaj conduction ntawm zaub mov yuav tshwm sim hauv lub cev plang thiab qhov no cog yuav tsis nyob ciaj sia.
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