Phloem - He aha ka keia? Launch, me nā hale o ka phloem, xylem Haʻalele

Phloem - mea he kūikawāʻano o ke kanu'aʻaʻa. Ma ka olelo Helene, 'ōlelo i ka manawa o ia hoʻi, "wauke". E like me ka mea, ua pinepine kapa phloem. Phloem - i ka lole ma i ka hoolilo ana o māhuaola i ka mea kanu nā loko. He aha ka ka 'ole o ia mea? Pehea o ka amo ana o māhuaola? He aha kaʻokoʻa mai ka xylem?

E mālama nei i nā'aʻaʻa o nā mea kanu: xylem a me ka phloem

No ka amo ana o nā minelala hao a me ka wai i wahi likeʻole o ka mea kanu kupono lawelawe lole. Ua he a mauʻano o ka luna 'nā'aʻaʻa - phloem a me ka xylem.

i kapa Xylitol laau a me ka phloem - Hehe. Ka mea, e ana ke aupuni 'o kokoke koke ana i kekahi i kekahi, a hana i ka lawelawe kaola (i kapaʻia vascular fibrous). E ae hoʻoponoponoʻana o Kamehameha o xylem a me ka phloem hoʻokuʻu akula kekahi mau ano o ka lawelawe fabrics:

1. Kollaterialnye ('aʻaʻa e pili ana i kekahi i kekahi, a aia equidistant mai ka iho hapa o ka laau kino).
2. Bikollaterialnye (xylem hoʻopuniʻia phloem mau apana).
3. Concentric (wā xylem poai puni i ka phloem a me ka Hope versa).
4. Groove (ka wā o ka phloem a me ka xylem o ke kahahńnai o ia lŘlŘ mea onionio).

Ka 'ole o ka phloem

mea kanu phloem - he kūikawā 'ano o ka lawelawe lole, a ua pono, e hoʻouna i ka mahuaola, i hanaʻia e like me ka hopena o ka kāʻamaʻai, a hiki i na nā loko o ka mea kanu, kahi a lakou i hoʻohana. Byʻano o ke kumu ua maheleia i loko o ka kēia mau 'ano:

• iniiaiie (palena pau o ka procambium);
• kiʻekiʻe (i hanaʻia o ka cambium).

Lākou ka papa kuhikuhiE koena unuhi o ia i loko o ka iniiaiie phloem kaawale şarkı naau-hoʻokino. Eia naʻe, kā lākou ke kelepona hele haku mele 'ana o'ālike.

Phloem ninoieo o ke kēia halepaahaoʻAno:

• kānana (i iniiaiie hoolilo konohiki, a i ole halepaahao nuclei);
• sclerenchyma (hookauwa e kākoʻo);
• parenchymal (kuleana pili i like haʻahaʻa kahahānai amo).

Ke kumu nui hiʻona o ke kānana keena - i ke alo o kūikawā ili i loko o ka halepaahao pa. Lākou me Kinohi He nō unclear. i hoalaala ia nā kaha me callose kānana oihana mua (polysaccharide), i hiki loaa i loko o ia mau mea. Callose ke occlude na kaha o na keena, no ka mea hoike, i ka wa a ke kanu mea i loko o ka ilina pae i loko o ka hooilo.

phloem amo

Phloem - he lole, a i hoʻoneʻeʻia i kia pāʻoihana o hydrocarbons (ka hapanui sucrose) i hanaʻia e like me ka hopena o ke kāʻamaʻai. Eia hou, i ka hoolilo assimilates a me metabolites, akā, ma lalo nā hoʻohui like. nuipa a hoolilo i kela kīnā mau na umi o kenimika no ka hora.

Ka hali 'waiwai ua lawe mai ma nā loko kahi ka mahuaola i ' Imi i hanaʻia, i ka māhele o nā mea kanu, kahi mea i hoʻohana 'ia paha stocking. Hana 'ona i hoolilo ai i na aa, hoi e pana aku, lau ka pukaʻana, reproductive nā loko, tubers, pu u kukui, rhizomes.

E like me ka hopena o ia mea, i ka noiʻi i loaʻa i ke amo ua lawe mai ma kona mau pou keʻena ma lalo nei i kela mau wahi o na mea kanu i mea hoʻopuniʻana iā ia. Eia hou, i ka hoolilo o ka waiwai, heʻeluaʻaoʻao. No laila, i ka mea kanu i loko o kekahi manawa o ka ulu wa pono ke loaa ka mahuaola a pana aku au i ia mau mea.

Phloem: kuleana pili i

Kāʻamaʻai ia lŘlŘ ma na chloroplasts o ka lau, a me ke komo ana o Map. Kona huahana, ka wai a me nā pāʻoihana o nā minelala hao ke kemu ma na aa o ka mea kanu i loa nō ia no ka functioning o nā mea a pau keena. Phloem - mea he lole e hoʻolako lākou translocation. Puna pele o ke kānana oihana mua mai mau mea o ka kiʻekiʻe hydrostatic puʻe i na mau mea o kona haʻahaʻa waiwai. No laila, i ka papa kuhikuhi hana o ka phloem - ke amo.

Like ka xylem mai ka phloem

I loko nō o ka mea i ka xylem a me ka phloem hana like oihana, a eia i loko o pili koke, ka mea, i oko ao. Neʻe i xylem waiwai loko mai o ka kumu a hiki i na lau. A, na keena aha kēia 'ano o ka lole e vascular hehee wale, tracheids, olona, a me ka lāʻau parenchyma. Xylem mea pono no ka hoololiia ana o ka wai a me ka mea hoʻoheheʻe māhuaola.

Pela phloem - mea he ano o vascular'aʻaʻa o ka mea kanu. Ua lawelawe 'ana i ka hoolilo māhuaola mai na nā loko mai o ka mea kanu, ma ka mea i hana i ka hana i loko o ia mau wahi, kahi a lakou i hoahu iho ai ka lukuʻia. Phloem ninoieo o ekolu aeeaʻAno - kānana, sclerenchyma a me ka parenchymal. I ka papa kuhikuhiE amo papa kānana keena hana me ka kūikawā ili a i ole nuclei.

Aoaao o ka waiwai hiki ke lawe mai i nāʻaoʻao, a me kona māmā holo kekahi manawa mau na umi o kenimika no ka hola ihoiho. Kekahi lawelawe lole, like me ka hana ana i ka phloem, xylem mea. Akā, kā lākou mau papa like ke moe i loko o ka mea ana xylem 'ohua' hoʻokahi wale ao ao (mai aa i ka hua hou ana iho) ka wai me ka mea hoʻoheheʻe nā minelala hao.