Video: Dab tsi yog cov txheej txheem cog?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A cog muaj ob lub cev tshuab : 1) kev tua lawv , thiab 2) lub hauv paus lawv . Cov ntaub so ntswg thauj cov zaub mov, dej, cov tshuaj hormones thiab cov zaub mov hauv lub cev cog . Cov ntaub so ntswg muaj xws li xylem, phloem, parenchyma, thiab cambium cells. Ob txoj kev xav ntawm tus qauv ntawm cov hauv paus thiab hauv paus meristem.
Nyob rau hauv no hais txog, dab tsi yog lub 3 cog systems?
Cov ntaub so ntswg ntawm a cog tau koom ua ke peb cov ntaub so ntswg tshuab : cov ntaub so ntswg dermal lawv , cov ntaub so hauv av lawv , thiab cov hlab ntsha lawv.
Tsis tas li ntawd, cov nroj tsuag hauv nruab nrog cev thiab lawv txoj haujlwm yog dab tsi? Cog cev suav nrog lawv cov hauv paus hniav, cov qia, nplooj, thiab cov qauv kev ua me nyuam. Txhua cog qoob loo ua haujlwm tshwj xeeb hauv lub neej ntawm cov cog . Cov hauv paus hniav, nplooj, thiab qia yog txhua yam kev cog qoob loo. Cov paj, noob, thiab txiv hmab txiv ntoo ua rau cov qauv kev loj hlob.
Qhov tseeb, cov ntaub so ntswg tseem ceeb ntawm cov nroj tsuag yog dab tsi?
Hauv cog lub cev, cov ntaub so ntswg tau categorized dav rau hauv peb cov ntaub so ntswg systems : epidermis, hauv av cov ntaub so ntswg , thiab vascular cov ntaub so ntswg . Epidermis - Cells ua rau sab nrauv ntawm nplooj thiab cov tub ntxhais hluas cog lub cev. Vascular cov ntaub so ntswg - Cov thawj cov khoom ntawm vascular cov ntaub so ntswg yog xylem thiab phloem.
Dab tsi yog lub luag haujlwm tseem ceeb ntawm peb cov nroj tsuag cov ntaub so ntswg?
Ntsiab Takeaways: Cog Tissue Systems Tsob Ntoo cell tsim cog cov ntaub so ntswg systems uas txhawb nqa thiab tiv thaiv a cog . Muaj peb hom ntawm cov ntaub so ntswg systems : dermal, vascular, thiab hauv av. Dermal cov ntaub so ntswg yog tsim los ntawm epidermis thiab periderm. Epidermis yog txheej txheej nyias nyias uas npog thiab tiv thaiv cov cell hauv qab.
Pom zoo:
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