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Vim li cas epidermis yog cov ntaub so ntswg yooj yim?

Cov txheej txheem:

Vim li cas epidermis yog cov ntaub so ntswg yooj yim?
Vim li cas epidermis yog cov ntaub so ntswg yooj yim?

Video: Vim li cas epidermis yog cov ntaub so ntswg yooj yim?

Video: Vim li cas epidermis yog cov ntaub so ntswg yooj yim?
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Cov ntaub so ntswg yooj yim yog tsim los ntawm cov hlwb uas muaj cov qauv thiab ua haujlwm zoo sib xws. Cov ntaub so ntswg no yog tsim los ntawm ib hom cell. Ob peb txheej ntawm cov hlwb hauv qab lub epidermis feem ntau yog cov ntaub so ntswg yooj yim.

Yuav ua li cas cov ntaub so ntswg mus tas li yog epidermis?

Primary dermal ntaub so ntswg, hu ua epidermis, ua rau txheej txheej ntawm tag nrho cov nroj tsuag hauv nruab nrog cev (xws li, stems, cag, nplooj, paj). Lawv pab tiv thaiv dej ntau dhau thiab cuam tshuam los ntawm kab thiab kab mob. Cov ntaub so ntswg muaj ob hom: dej thauj xylem thiab zaub mov thauj phloem.

Cov ntaub so ntswg twg yog cov ntaub so ntswg yooj yim?

Cov ntaub so ntswg yooj yim dua tau muab faib ua peb hom tseem ceeb. Lawv yog parenchyma, collenchyma, thiab sclerenchyma. Parenchyma - Cov hlwb ntawm cov ntaub so ntswg no nyob, nrog cov phab ntsa nyias nyias. Cells tuaj yeem ua oval lossis puag ncig.

Vim li cas qee cov ntaub so ntswg hu ua yooj yim mus tas li?

Lub hlwb ntawm cov ntaub so ntswg tas mus li tsis muaj peev xwm faib. Cov hlwb no twb tau sib txawv ntawm cov ntaub so ntswg sib txawv thiab tam sim no tshwj xeeb los ua haujlwm tshwj xeeb. … Yog li, cov ntaub so ntswg yooj yim hu ua yog li vim cov hlwb zoo sib xws thiab sib txawv

Cov ntaub so ntswg yooj yim yog dab tsi?

Muaj peb hom ntaub so ntswg yooj yim, uas yog, parenchyma, collenchyma thiab sclerenchyma.

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