Pehea i pollination a me ka fertilization ma ka flowering mea kanu? I flowering mea kanu, mai ka ovary pa? Acaeoey oo?

Flowering mea kanu i ka nui a me nā pae, Hoʻohaku i waena o ka loa honua me kona pono. Mai ka flowering kanu i ka papa kuhikuhiE mahi ia e ke kanaka, ka mea hilinaʻi nui no kona ola. Akā, i flowering kanu iʻikeʻia, ka mea pono ke hele ma ke kahua o ka pollination a me ka fertilization. E like me ka mea hana, heluhelu i kēia 'atikala.

pollination

Kēia kaʻina hana o ka hoololiia ana o ka pollen, mai stamens maʻai. Pehea i pollination a me ka fertilization ma ka flowering mea kanu? He ua hana ia ma nāʻaoʻao: pakiko-pollination a kea-pollination. Ma ka mea mua, pela ka hoololiia ana o ka pollen mānoanoa ko loko o kaʻai i paa wahi i loko o kekahi, a me ka pua. A pollinated pea paha tulips. A hiki i ke kea-pollination o ka pua pollen o kekahi mea kanu ua hoololiia a hiki i ka pistil o kekahi. Mea kanu pollinated ka hapanui ma nā mea kolo, ma ka pohihihi keia hihia - ka makani (ka naku a me birch), manu a me ka wai.

E like me ka hopena o ka pollination ma nā mea kolo hana huali, pono kekahi 'pua me kaʻoluʻolu ala a me nectaries e paka ono wai. O na mea kanu i hana i ka hailona o ke pollen. He ai no nā mea kolo. Ka mea, i o Laielohelohe ma ka alohilohi waihoʻoluʻu a me ke ala o ka pua. I ka wa i wehe 'ia nā mea koloʻapapane, ka mea hoʻopā aku i ka ili o ka pollen mānoanoa, a pili ana i kā lākou mau kino, a ma ke ala a hiki i ka pua ana o kekahi mea kanu, noho ma luna o ka pistil. A pollinated ma nā mea kolo. He nui flowering mea kanu i pollinated kekahi wale nō nā mea kolo: o ke ala hea'ūpā koli - pulelehua, keʻokeʻo clover - i ka nalo hopeʻeha, a me ka Louka - he bumblebee.

Keʻa-pollinated mea kanu i maikaʻi hakuloli i hoʻololi? Aneie ana. Akā, pollination kaʻina hana ma keia hihia hilinaʻi nui ma luna o kekahi mau aʻe. A pakiko-pollination 'aʻole e hilinaʻi ma luna o kekahi mea. No ka mea, mea i makau i ka ino kūlana a me ka nele ana o intermediaries.

fertilization

Pollen mānoanoa ko hina lakou ma ka stigma, i nā hoʻomaka e kupu. Mai ka vegetative keena o ka hooulu ana o ka lōʻihi pollen Tube. Ka Uluwehi o mai, e hiki no i ke kiʻekiʻe o ka ovary kulana, a laila, i ka ovule. Ka poʻe, he mau o ka spermatozoon e komo iloko o ka pollen Tube. Ua, ma ka huli, pyltsevhodu komo i ka ovule. A laila, i ka Tube ma ke kihi, i kona, a ke hookuu aku oia i ka kane sperm, a i hoouna koke ae i ka embryonicʻili, ka mea, ua kapaia eke. Eia e ulu hua.

Eia ka mea, oocyte fertilization me kekahi sperm a me ke kahua o ka zygote, mai i ka mea i hoʻomaka i ka hana i ka poe liilii, embryo loa hou meaola o ke kanu kumu. I ka Ia manawa, aia nei i ke kuʻi nukeliu me ka lua o ka sperm nucleus o ka zygote a me ka Polar Kora naʻEsau. I ka hopena o ka triploid aeea mai a ka endosperm ia lŘlŘ. Ua Ua kapaʻia ka nutrient'aʻaʻa, a iloko ona i kakauia me ke koe o na mea no ka mea maʻamau kūpono 'ana o ke embryo o ka wā e hiki mai mea kanu. A kino hooku iho la ia i ka 'īnea i nā'ōlelo o ka flowering mea kanu.

A i kekahi sperm me ka hua manu, a me ka mea 'ē aʻe, me ka Polar nuclei merge pu, he kaʻina kapaia papalua fertilization. He ano wale no flowering a me ka mea i kū hoʻokahi hiʻona o angiosperms. Na fertilized ovule ulu i loko o ka hua. E like me ka hopena, i ka ovary uluʻai. Ma flowering mea kanu, mai ka ovary paia o ka ulu fetus.

'ōlelo

I kekahi mea kanu, hiki i kekahi ka nui, a kaahele i ka kahua kupono o? Acaeoey, hoʻomaka e paʻi meaola o kēiaʻano a ianoiyuaa a. Kēia mea he pilikia ka pua, i mea he pono hiʻona o ke ola. All meaola, ke'ōlelo mai hooloihi i ke ola ana o na? Ueo. Maopopo ma waena o ka moe, a asexual nā'ōlelo, a lawe i ke komo ana o ka hookahi kanaka wahi. I ka wā o nā mea kanu hoʻomōhala hana kūikawā keena - spores, meaola hoʻomaka e hoonui.

Kēia mea typical o mosses, ka līoho, Fern, laau mosses, a me horsetails. Hoopaapaa i kūikawā uuku keena me ka nucleus a me ka cytoplasm, i mea kapa komo iā ia. e hiki ke hoomanawanui i ka lōʻihi manawa i ka poe ilihune keia mea. Akā, noho i loko o ka maikaʻi 'ia, koke germinate, a hoʻomaka e lilo kaikamahine kanu nona ka waiwai mai i oko mai o ka makua.

I moe kumu kāki i ke kane a me ka wahine germ aeee i merged, kūpono ana ma ke kahua o ka hui ma lalo meaola, qualitatively okoa mai o ka makua. Aia ka mea, ua komo ae o ka makua meaola wahine a kane rula.

'Ole a me ka ulu ana o ka mea kanu ovule

E like me kekahi hapa o ka ovule Hoʻohaku kūlana makrosporangy. I ka mea hana ka hoomoe ana i kekahi makuwahine aeea mai i i hana makrospory. ʻEkolu o ia ka hoʻomakaʻana i ka make, a, ultimately, luku aku. Ka ha makrospora - feminine, ka mea, e hooloihi aku i a me kona nucleus haawi i. A laila, i ka neʻeʻana o ke kaikamahine nuclei i loko o kaʻokoʻa auamo o ka halepaahao elongated shape. Kēlā me kēia hana i ka nucleus nō i hookaawale ai i nā manawaʻelua.

Keena kahi kokoke i kekahi auamo, ua hanaʻia e nā Kora naʻEsau eha. Keia ua kapaia ka embryo sac, a he haploid nuclei i loko o ka nui o nā'āpana ewalu. E hele mai ana, mai kela eha Kora naʻEsau ma luna o kekahi o lākou i hahai aku ma ka piko o ka embryo sac. Where ka mea, merge, kūpono ai i loko o ka haumāna nucleus -diploidnoe.

A laila, i ka embryonic eke i loko o ka cytoplasm, e hana nuclei ma waena o i pohā ma ke kelepona hele kiʻekiʻe. Ke eke i ehiku keena. About kekahi o kona mauʻauamo o ka hua manu i hoʻomākaukauʻia, i ka loaʻa o ka nui hua a me nā kākoʻo keena. Ma ka 'ē aʻe laau e hoʻonoho antipodes keena, a pau ekolu o lakou. No laila, i loko o kaʻeke ka manawa eono haploid keena a me kekahi diploid, a me ka haumāna nucleus. Ua Ua Aia ma ka waena konu o ka embryo sac.

He aha ka ke ovary?

Ua ua kapaʻia he laloʻia naʻe hapaʻai i loko o ka paʻa lua ma i i aia i ka ovule. Pollen hina mai ka stigma o ka pistil ma ovule, a ua hoomaluia e ku ei ka adverse rula o ka maloko lua nā hua. Ke ovule o ka hooulu ana o ka wahine germ keena - oocytes.

Ma flowering mea kanu, mai ka ovary paia e hoʻomōhala ana i hua a me na anoano. Ke ovary o ka pua ka multilocular a me ka unilocular. Ma ka hihia mua ka mea, ua maheleia i loko o ka punana i pohā, a me ka lua -ʻaʻohe. Ovary flowering mea kanu ua i puunaueia i poʻe mamo, a me ka polyspermous. Ua hilinaʻi nui ma luna o ka helu ana o ovules i loko o ia: mai plums, no kekahi laʻana - kekahi, oiai ka poppy - he hailona.

He aha e na ovaries?

Kind o ovaries o flowering mea kanu i:

• Luna. Ma ka wahi ua kaa ka uku ole ia, e ulu pu laua me ka mea'ē aʻe Oihana i loko o ka pua. Ovary pā pōhaku i hana mai carpels. Ma flowering mea kanu, mai ka ovary paia o ka ulu fetus. Lakou i mea hoike o ka buttercup a me kiliala. i kapaʻia kēia mau waihoʻoluʻu i kaʻaoʻao o ka hypogynous a okolopestichnyh.
• Lower ovary mea mau i ka wahi. Ua Ua hana me ke komo 'ana o nā Oihana o ka pua: no ka kumu o ka sepals a me petals me stamens i na pua e pili ana i ka luna o ka ovary. Ma flowering mea kanu, na paia o ka ovary razvivaetsyaplod. Lakou i mea hoike o ka Asteraceae, cactus a me ka orchid mea kanu. Flower kapa nadpestichnym.

• Kalaka nui-emi iki mahope o ovary. Kona luna ua ole fused i ka mea o kekahi mau wahi, no laila ia mea noa. Nā pua o kēia 'ano i kapaia polunadpestichnymi. Mau mea i nāʻano o nā ovaries o flowering mea kanu ma laila.

flowering mea kanu

Ka mea,ʻo ka loa e holumua ai pūʻulu o nā mea kanu, heluʻelua haneri a me kanalima tausani laha 'haawi ma ka Honua Honua. Ka uuku kanu Ua noʻonoʻo duckweed, ke anawaena o ka i mea like me kekahi millimeter. Ua ola i loko o ka wai. Ka nui loa flowering mea kanu - ka mea, 'o ka laau, hiki ke kiekie o kekahi haneri mika a me ka hou.

Ka muli o flowering mea kanu mea ku pono i ke kūpono 'ana o kūikawā reproductive nā loko - pua. Ma kekahi mau mea kanu ka mea, ua pena i ka aahu'ōniʻoniʻo, oiai kekahi poe - i ka meaʻala. Nā pua i ka poe liilii, a me ka inconspicuous mea kanu, like me ka weuweu. I loko nō o ka nuiʻano o ka flowering mea kanu, ka mea, e harmoniously noniakahi i loko o ko kākou mau ola: decorate i nā kīhāpai a me nā wahi ulu lāʻau, e haawi mai i ka olioli o ka pü ana me ia.

Ka 'ole o ka pua

I ka pua o ka luna 'hui,'ōnaehana i hoʻolako ? Aneii kanu anoano. Kona helehelena, kena ae la he ākea angiosperm (flowering) mea kanu ma ka honua nei. Flower hanaʻia he nui i hana '. He kōkua hana i nā stamens me pollen mānoanoa, pistils me ovules. Ua Radio He nui kūlana ma ka pollination, fertilization, ho okumu ana o na anoano a me ka hua.

Flower ua truncated, mutated, i kaupalena 'ulu e pakele ai e hali ana i perianth, pistils a me stamens. All angiosperms i like ma ka 'ole a me kaʻokoʻa ma ka ano pua. Kēia ka hana i ka pollination manaʻo i loko o kekahi mau aoao.

Flower ke pau i ka papa kuhikuhiE paha kīloi paʻewa anei i, kekahi o i mea kapa ole ma lalo o ua kapaia he pedicel i ka pua. Ua hoʻopōkole nui paha hoi ma kahi ee i loko o sessile pua. Peduncle huli i loko o ka wahi, a ua elongated, convex, concave paha i lalo. Ua loaʻa nā māhele a pau o ka pua. Keia me petals sepals, stamens a me kaʻai i, i ka lalo o ka i ua hana ma ka ovary, ma i loaʻa nā ovules a me ovules. I ka pua a me ka ovary concave wahi. Inā ka ovary ua hanaʻia i loko o ka luna o ka pistil, ka wahi mea convex paha palahalaha.