Qhov Tseem Ceeb Qhov Sib Txawv - Cov Tsiaj Vs Cov Txheej Txheem Loj
Angiosperms yog cov paj ntoo uas tsim cov noob uas nyob ze. Angiosperms muaj cov paj nrog txiv neej thiab poj niam cov khoom me me (stamens thiab pistils feem). Stamens nqa txiv neej gametes thaum pistils nqa poj niam gametes rau kev sib deev. Ib qho anther yog ib feem ntawm cov stamens, thiab nws muaj plaub lub hnab paj ntoos. Cov txheej txheem hu ua microsporogenesis cov ntaub ntawv Pollen nplej. Pollen tsis suav tias yog txiv neej gamete. Nws muaj ob lub hlwb uas tsis yog menyuam yaus thiab cov menyuam yaus. Cov hlwb uas tsis muaj menyuam yaus nyob hauv cov paj noob hlis yog lub npe hu ua vegetative cells. Nyob rau hauv feem ntau flowering nroj tsuag, ib tug vegetative cell tuaj yeem pom. Lub cev xeeb tub yog lub npe hu ua generative cell. Vegetative cell yog lub luag hauj lwm rau kev tsim ntawm paj ntoos raj uas mus los ntawm cov style ntawm pistil. Generative cell faib thiab tsim cov phev hlwb uas yog txiv neej gametes ntawm flowering nroj tsuag. Qhov sib txawv tseem ceeb ntawm vegetative thiab generative cell yog vegetative cell yog non-reproductive thaum lub generative cell yog reproductive.
Dab Tsi yog Lub Cev Muaj Zog?
Lub xovtooj loj dua ntawm cov paj paj noob qoob loo yog lub npe hu ua vegetative cell lossis tube cell. Cov noob qoob loo tsis yog kev ua me nyuam, thiab nws tsim cov paj paj paj thaum paj ntoos nyob ntawm qhov qias neeg ntawm lub paj. Thaum paj ntoos tsaws rau ntawm lub stigma, nws absorbs noo noo thiab pib germinate los ntawm ua paj ntoos raj los ntawm cov style ntawm lub zes qe menyuam. Cov noob ntawm tes yog qhov tseem ceeb hauv kev xa txiv neej gametes rau hauv lub hnab embryo rau ob zaug fertilization tshwm sim hauv cov paj ntoo. Vegetative cell hloov mus rau hauv ib tug elongated raj zoo li qauv. Lub vegetative cell muaj cytoplasm thiab ib tug nucleus. Nws yog loj dua piv rau generative cell. Thiab cov noob qoob loo yog nyob ib puag ncig los ntawm cov phab ntsa nyias nyias, lub npe hu ua intine.
Daim duab 01: paj ntoos nplej
Lub paj paj ntoos hlob mus txog thaum nws ntsib lub embryo sac thiab ces tso cov phev nuclei rau syngamy.
Dab tsi yog Generative Cell?
Lub generative cell yog cov me me uas nyob hauv cov paj ntoos nplej. Nws yog kev loj hlob, thiab nws faib los ntawm mitosis thiab tsim ob tug txiv neej gametes los yog ob lub phev hlwb. Ib phab ntsa nyias hu ua intine cais cov generative cell. Nyob rau hauv cov txiv hmab txiv ntoo uas paub tab, generative cell lies nyob rau hauv lub cytoplasm ntawm lub vegetative cell (generative cell kis mus rau lub vegetative cell mus rau lub embryo sac rau fertilization).
Daim duab 02: Generative Cell of the Pollen Grain
Ib zaug, cov phev nuclei nkag mus rau hauv megagametophyte, lawv tau npaj txhij rau kev sib koom ua ke lossis ob lub fertilization los tsim cov zygote.
Dab tsi yog qhov zoo sib xws ntawm Cov Tsiaj Tsiaj thiab Cov Txheej Txheem Txheej Txheem?
- Ob lub noob thiab cov noob qoob loo yog cov hlwb ntawm cov paj ntoo.
- Ob lub hlwb tseem ceeb rau kev sib deev ntawm cov paj ntoo.
- Ob lub hlwb muaj nucleus.
- Ob lub hlwb tsim thaum lub sijhawm microsporogenesis.
Dab tsi yog qhov txawv ntawm Cov Tsiaj Tsiaj thiab Lub Cev Muaj Zog?
Vegetative vs Generative Cell |
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| Cov cell tsis zoo yog ib hom cell hauv paj paj noob qoob uas tsis yog menyuam yaus thiab lub luag haujlwm rau kev tsim paj paj ntoos. | Lub generative cell yog ib hom cell hauv paj paj noob qoob uas muaj menyuam yaus thiab lub luag haujlwm rau kev tsim cov phev. |
| Kev muaj peev xwm yug me nyuam | |
| Cov cell tsis muaj menyuam. | Cov xovtooj ntawm tes yog kev loj hlob. |
| Cov noob qes loj dua ib lub xovtooj ntawm tes. | Lub generative cell me dua piv rau cov vegetative cell. |
| Muaj nuj nqi | |
| Ntshai ntawm tes tsim lub paj paj noob hlis kom xa txiv neej gametes rau hauv lub hnab embryo. | Generative cell forms phev hlwb los yog txiv neej gametes. |
Summary – Vegetative vs Generative Cell
Microsporogenesis yog txheej txheem uas tsim cov paj ntoos nplej thiab txiv neej gametes. Thaum thawj pollen mitosis, ob lub hlwb tsis sib npaug yog tsim nyob rau hauv cov paj ntoos. Lawv hu ua vegetative cell thiab generative cell. Vegetative cell yog lub cell loj dua uas tsis yog kev sib deev. Cov cell me yog cov generative cell uas yog kev ua me nyuam. Vegetative cell tsim cov qauv elongated hu ua paj paj tube. Los ntawm cov paj noob hlis, txiv neej gametes raug xa mus rau hauv lub hnab embryo rau fertilization. Generative cell nucleus faib thiab tsim ob tug txiv neej gamete nuclei uas koom ua ke nrog poj niam gamete hauv lub hnab embryo. Qhov no yog qhov sib txawv ntawm vegetative thiab generative cell.
Download PDF Vegetative vs Generative Cell
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline lub hom phiaj raws li daim ntawv ceeb toom. Thov rub tawm PDF version ntawm no Qhov txawv Ntawm Cov Tsiaj Tsiaj thiab Cov Txheej Txheem Loj
