Fertilization - He aha ka hele ana, a pehea? Papalua fertilization ma flowering

Fertilization - o ke kaʻina hana o ka merging o elua keena, kūpono ana ma ke kahua o ka hou keena, e haawi ala i kekahi meaola o ka ia genus a? Ueo. He aha mea he papalua fertilization ma flowering mea kanu, a pehea ia i, heluhelu i kēia 'atikala.

Ke ae pā o ka fertilization

Ua hele mai ana me ka hopena o ke kuʻi nukeliu o mau keena, ka wahine a me ke kane, a me ka muli o ka diploid zygote. Ma kēlā me kēia paʻa o chromosomes Ua makana hoʻokahi paternal a me kekahi maternal halepaahao. Ke pā like ana o ke kaʻina hana o ka fertilization mea ka e hoihoi diploid kau o chromosomes , a hui pu iho aaiaoe mea o na makua. Ka lakou poe mamo e e oi viable me hoʻohuiʻia ka loa maikaʻi kēia ano, mai kona makua kāne a me ka makuwahine.

Fertilization - He aha ka mea?

Kēia kaʻina hana o prompting i ka hooulu ana o ka hua i loko o ka hoʻokuʻi pū o nuclei. Fertilization - He aha ka mea? Kēia mea he irreversible kaʻina a ia lŘlŘ like me ka hopena o ke kuʻi nukeliu o gametes o kekahi mau sexes, a hoʻohuiʻia kā lākou mau nuclei. Na fertilized hua ua hookauwa ole oia ia a hiki i kēia kaʻina hana o ka lua o ka manawa.

Akā, he mau mea kanu e paʻi i ka hou hanauna wale ma ka wahine gamete ole fertilization. Kēia nā'ōlelo ua kapaia he wahine puupaa. Ua mea noteworthy i kēiaʻaoʻaoʻelua o ka'ōlelo i loko o kekahi 'ano o ke kanu hiki ke interleaved.

Palua fertilization o flowering mea kanu

Sex keena o nā hoomaka ae la e e kapaia gametes. A me nā wāhine i ka hua manu, a me ke kane - sperm e kanu hua paa, oiai ka spore - lawe lima. Fertilization - He aha ka mea? He ka helehelena o ka kekahi aeea - ka zygote, i loaʻa ka hereditary kāna moʻolelo sperm a me ka hua.

Flowering mea kanu i luna 'fertilization, a ua kapaia ka papalua, no ka mea, ma ka hou ana i ka hua manu ua fertilized ma kekahi kuikawa halepaahao. Ho okumu ana o sperm i wahi i loko o ka lepo (particles) o pollen, a ua lawe mai lākou maturation i loko o nā stamens, a he oiaio, ua i loko o kā lākou mau anthers. Ka nānā ho okumu ovules hua i aia i loko o ka ovaryʻai. I ka wā o ka hua manu ua fertilized sperm, ovule, mai ka hoʻomaka 'ana e hoʻomōhala anoano.

I ka fertilization ma flowering ua ana, e mua pono e pollinate i ka mea kanu, ia mea, ma ka stigma e kiʻi i ka speck o ka lepo pollen. Once ka stigma, e hoʻomaka e ulu i loko o ka ovary, kūpono ma ka pollen Tube. Ka poʻe, i ka lepo huna ua hanaʻia o nā sperm keena. Ka mea, e ole e ku malie oukou, a olalo i ka hoʻoneʻe i ka pollen şarkı, a komo iloko o ka ovule. Eia, ma ka mahele ana i kekahi aeea elongation a me ke kahua o ka embryo sac.

Ua ua pono no i ka wahi o ka hua manu i loko o laila, a hiki i ka hookahi halepaahao, a e kālele ana i ka papalua kau o aaiaoe 'ike. Mahope pollen şarkı germination ia lŘlŘ i loko o ka embryo sac, a kuʻi nukeliu o sperm a me ka hua manu, kūpono ana ma ke kahua o ka zygote, a me ka mea 'ē aʻe - me ka ua halepaahao. kūpono 'ana o ke embryo, mai ka zygote ia lŘlŘ. Ka lua o ka kuʻi nukeliu ano nutritive'aʻaʻa, endosperm a pono no ka kino o ka embryo i ka ulu ana o ka manawa.

He aha e pono ai no ke ola ana o kēlā me kēia 'ano o ka mea kanu?

• Mua, e pono i ka diploid kau o chromosomes, a me loko o ka mea, e hoʻihoʻi - kā lākou pairing.
• Hōʻikeʻia ka hoʻomauʻana ma waena o nā hanauna, ma muli o ka succession.
• Hui pu iho, e hana i hookahi ano a hereditary waiwai o nā mākua.

A pau keia ua hanaia ma ka aaiaoe kiʻekiʻe. I mea e hoʻomaopopo fertilization, e hana ana ka poʻe maturation o maternal a me ka paternal gametes.

Fertilization ma angiosperms

ua ho'ākāka 'ia ma kēia kaʻina hana no ka manawa mua i ka German nä känaka' epekema Strasburger i loko o ka lua o ka hapalua o ka umikumamaiwa kenekulia. Fertilization ia lŘlŘ angiosperms ka hoʻokuʻi pū o nā gametes nuclei okoa: me ke kane a me ka wahine rula. Lākou cytoplasm ua i komo i loko o fertilization. Maoli Fertilization ia lŘlŘ ka wā o ka sperm fuses me ka hua nucleus.

Ka aina hanau o sperm o ka pollenʻai a pollen Tube. Ka palaoa hoʻomaka e ulu ma hope o nā kau mai maluna o ka stigma. Manawa o ka hoʻomaka o kēia kaʻina, kēlā mea kanu mea okoa, e like me ka manawa o ka fertilization. No ka laʻana, beet pollen mānoanoa ko germinate hope, elua no hora, a me ka maize - nei. Ka mua hoailona o ka germination - kona mea ulu ma ka buke. IeAUPIIe, IAa IO kekahi pollen palaoa 'ano apau loa kekahi Tube. Akā, i kekahi mau mea kanu mea i malama i keia rula, a ho okumu mau handsets, wale kekahi o a kona ulu ihoiho.

Pollen şarkı me ka sperm ma luna o kona ambulant ulu a me ka hope, mai hemo mai. A pau kona Contents mea i loko o ka embryo sac. Kekahi o na infiltratorsʻaneʻi sperm ua hoʻolauna i loko o ka hua manu, a merges me kona haploid nucleus. Fertilization - He aha ka mea? Kēia kuʻi nukeliu o nā nuclei o ka sperm a me ka hua. Na fertilized hua hoʻomaka i ka puunaue, loaa elua hou keena. Ka mea, ua maheleia i eha, a no laila, ma luna o. Pela, aia no he mau mahele, ma a ka laau embryo e hoʻomōhala ai.

Angiosperm mea kanu ma hope o fertilization i ka hiki ke kūkulu i ka hou kino, i ua kapaia ka endosperm. Kēia mea,ʻaʻohe mea'ē aʻe ma mua o ka'aiaola embryo Poakolu. At confluence lua o sperm a diploid nucleus ua hana i kekahi kau o chromosomes, elua o ka a - maternal kumu a me kekahi - makua kāne. Penei, ka waʻa fertilization kanu meaola mea wā he sperm fuses me ka hua manu, a me ka mea 'ē aʻe - me ka Kora naʻEsau keena, aia i loko o ka waena.

Kiʻiona hiʻona o angiosperms

• Nui ka hoʻololiʻana i ka ulu ana i loko o kekahi ana.
• Palua fertilization, e leie aku ia i ka lako hou i ka waiwai e pono ai no ka mea maʻamau germination o na anoano.
• Ke alo aku o ka triploid endosperm.
• Education ovules loko o ka ovary, kahi o ka carpel paia, e mālama iā lākou, mai ka pōʻino.
• Fetal kūpono 'ana angiosperms mai ka ovary.
• Loaa ka hua i loko o ka hua, i nā pā o ka a i hoomaluia e ia.
• Ke alo aku o nā puaʻo ia ka mea hiki ke pollinate i ka mea kanu i nā mea kolo.

Mahalo i kēia mau hiʻona angiosperms kūlana 'he Hoʻohakuʻoihana i loko o ke ao nei.

Ka makamake nui fertilization o angiosperms

Ka mea, penei, mai ka mea i kēia mau mea kanu i ka papalua fertilization. A me nā hiʻona ua poe ma ka kŰia kapaia Xenu. Kona ano ke moe i loko o ka mea ana i ka pollen 'ana pili i ka waiwai a me nā' ano o ka endosperm. No ka laʻana, lawe i ka palaoa.

He He melemele a me keʻokeʻo anoano. Lākou mau waihoʻoluʻu hilinaʻi nui ma luna o ke ano o ka endosperm. Ma hope o pollination o ka wahine pua me ka pollen Belozernaya maizeʻano likeʻole zheltozernogo kona pena e nō e melemele, oiai ka endosperm hooulu ia lŘlŘ ma luna o ka mea kanu me ka keʻokeʻo mohihi.

He aha ka mea a Mānoa flowering mea kanu?

Kēia mau mea kanu hoike no ka 13 000 hanau a me 250 000? Ueo. Ka mea, i hoʻomano hoʻohana a puni ka honua. Flowering mea kanu - kēia mau mea i ka ki eiiiiiaiou o ka biosphere, paka ke aloha 'ona e nakinaki i carbon dioxide, a hoʻokuʻu akula ka oxygen. Ke mauu nei ai ke kaula gula hoʻomaka me ia. He nui laha 'o flowering mea kanu ke kanaka hoʻohana no kaʻai. O kēia mau mea, kūkulu hale, a no ka e like hale lako.

Hiki ole ke hana ole ia, a me ka lāʻau lapaʻau. Kekahi mau 'ano o nā angiosperms i Hoʻohaku i loko o ke ao nei, he kuleana kūlana ma ke kahua a me ka hoʻokumu o kanu uhi i ka papa kuhikuhiE hapa o ka honua phytomass e pāʻani. Ultimately, ka mea o kēia mau mea kanu me ka nānā 'ana i ka manawa kūpono o ke ola ana o ke kanaka ma ka honua nei me ke ano o ka liluwelo.