Puas yog megasporophyll thiab carpel tib yam?

Cov txheej txheem:

Puas yog megasporophyll thiab carpel tib yam?
Puas yog megasporophyll thiab carpel tib yam?

Video: Puas yog megasporophyll thiab carpel tib yam?

Video: Puas yog megasporophyll thiab carpel tib yam?
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Anonim

A carpel muaj qhov ua haujlwm zoo ib yam li megasporophyll, tab sis feem ntau suav nrog kev qias neeg, thiab yog fused, nrog ovules nyob rau hauv qhov loj me me, lub zes qe menyuam.

npe lwm lub npe ntawm carpel yog dab tsi?

Explanation: Pistil is other name of carpel of a paj..

YPuas yog carpel a Megasporangium?

Raws li qhov kev lees paub dav dav tshaj plaws, lub carpel tsim hloov kho, sib txuas megasporophyll bearingob, adaxial kab ntawm ovules (Daim duab 6.9D). Nco qab tias "megasporophyll" yog cov nplooj hloov pauv uas dais megasporangia, uas nyob rau hauv cov noob nroj tsuag yog cov khoom ntawm ovules thiab cov noob; saib Tshooj 5.

Puas yog filament ib feem ntawm carpel?

Lub zes qe menyuam muaj ib lossis ntau lub ovules, txhua tus ntawm cov uas yuav loj hlob mus rau hauv cov noob thaum fertilization. Cov txiv neej lub cev xeeb tub, cov stamens (collectively hu ua androecium), nyob ib ncig ntawm lub hauv paus carpel. Stamens yog tsim los ntawm ib tug nyias stalkhu ua filament thiab ib lub hnab zoo li tus qauv hu ua anther.

Qhov txawv ntawm rab phom thiab rab phom yog dab tsi?

Carpel yog poj niam ib feem ntawm lub paj uas muaj stigma, style thiab zes qe menyuam. Pistil tuaj yeem yog tib yam li ib tus neeg carpel lossis ib phau ntawm carpels fused ua ke. Ua los ntawm stigma, style thiab zes qe menyuam. … Qe ntau lawm tsis muaj nyob rau hauv pistil.

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