Video: Vim li cas cov nplooj tau piav raws li lub cev?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Piav qhia vim li cas nplooj tau piav raws li lub cev , tsis yog ntaub so ntswg. A nplooj yog tsim los ntawm ntau dua ib hom cell, yog li ntawd yog cev (cov ntaub so ntswg tsuas muaj ib hom cell.) A. nplooj kuj tseem ua haujlwm ntau yam (piv txwv li kev xa mus, cov duab hluav taws xob, cov protein sib txuas) thaum cov ntaub so ntswg tsuas ua haujlwm tshwj xeeb.
Ua kom pom qhov no, vim li cas nplooj ntoo thiaj li yog lub cev?
Ib cev yog cov ntaub so ntswg sib koom ua ke ua ib pawg ua haujlwm txhawm rau ua haujlwm zoo ib yam. Nplooj feem ntau pom muaj nyob hauv cov hlab ntshav cov nroj tsuag, uas muaj cov ntaub so ntswg (xylem) uas pab kom lawv ua dej.
Ib yam nkaus, nplooj puas yog cov ntaub so ntswg lossis lub cev? Cov nplooj yog cov thawj photosynthetic cev ntawm cov nroj tsuag, ua qhov chaw tseem ceeb uas lub zog los ntawm lub teeb hloov pauv mus rau lub zog tshuaj. Zoo ib yam li lwm tus cev cog, a nplooj yog suav nrog peb theem pib cov ntaub so ntswg , nrog rau daim tawv nqaij, vascular, thiab hauv av cov ntaub so ntswg.
Tsis tas li ntawd, vim li cas cov nplooj thiaj suav tias yog cov kabmob tseem ceeb ntawm cov duab hluavtaws?
A nplooj yeej hu ua 'chav ua noj ntawm tsob ntoo'. Qhov no yog vim lawv yog cov lub cev tseem ceeb lav rau photosynthesis , los ntawm cov nroj tsuag tsim nws lub zog aka nws yog khoom noj. Lawv tau txais lawv cov xim ntsuab vim tias muaj chlorophyll.
Vim li cas epidermis yog ntaub so ntswg thiab tsis yog lub cev?
Teb thiab Piav Qhia: Tus daim tawv nqaij yog a cov ntaub so ntswg . Hauv cov khoom muaj sia, cov cell tshwj xeeb tau teeb tsa los tsim cov ntaub so ntswg , thiab cov ntaub so ntswg daim ntawv cev.
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