Vim li cas phloem parenchyma tsis tuaj yeem nyob hauv cov qia monocot?

Cov txheej txheem:

Vim li cas phloem parenchyma tsis tuaj yeem nyob hauv cov qia monocot?
Vim li cas phloem parenchyma tsis tuaj yeem nyob hauv cov qia monocot?

Video: Vim li cas phloem parenchyma tsis tuaj yeem nyob hauv cov qia monocot?

Video: Vim li cas phloem parenchyma tsis tuaj yeem nyob hauv cov qia monocot?
Video: teb qhia tus tij laug zeej xeeb thoj nkauj hmoob nplog Lub xov tooj pheej pheej yig yog vim li cas 2024, Hlis ntuj nqeg
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Nws muaj ntau cov plasmodesmata rau cov khoom noj sab nraud. Phloem parenchyma nyob rau hauv feem ntau ntawm cov monocots. Yog li, monocot qia yog ib qho ntawm cov kev xaiv uas tsis muaj phloem parenchyma.

YPuas phloem parenchyma muaj nyob rau hauv kab monocot?

Teb tiav:-Phloem parenchyma muaj qee cov hlwb xws li cov hlwb ua hlwb, parenchyma hlwb, cov hlwb txhawb nqa, cov hlwb tshwj xeeb thiab lwm yam … Peb tuaj yeem pom cov phloem parenchyma hauv dicot nplooj, dicot qia thiab monocot cag tab sis cov no tsis muaj nyob rau hauv monocot qia.

Puas phloem Fiber tsis muaj nyob hauv monocot?

Phloem parenchyma yog absent nyob rau hauv feem ntau ntawm cov monocotyledons. Phloem fibers (bast fibers) yog tsim los ntawm sclerenchymatous hlwb. Cov no feem ntau tsis tuaj nyob rau hauv thawj phloem tab sis pom nyob rau hauv lub thib ob phloem.

Puas parenchyma muaj nyob rau hauv monocots?

Feem ntau ntawm cov qia monocot yog tsim los ntawm cov ntaub so ntswg, uas feem ntau muaj cov hlwb parenchyma. Sclerenchyma hlwb kuj pom nyob rau hauv cov cheeb tsam uas xav tau lub zog ntxiv. Monocot stems muaj vascular bundles, muaj li ntawm xylem thiab phloem, uas yog tawg mus thoob plaws hauv av ntaub so ntswg.

Yuav ua li cas hauv qab no tsis nyob hauv phloem ntawm monocot qia?

Lub phloem parenchyma khaws cov khoom noj thiab lwm yam khoom xws li resins, latex thiab mucilage. Nws tsis muaj nyob rau hauv cov qia monocot.

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