Imibala: isakhiwo kunye nenkcazelo inamacandelo

I imbali a lungiswa amahlumelo elifutshane, nto leyo naphaya ukwenza imbewu, gametes (iiseli intsholongwane) kunye iLayibhrari yaMaxwebhu wenziwe. Emva kwale nkqubo ivelisa iimbewu kunye neziqhamo. Iintyatyambo, isakhiwo apho elula ngokwaneleyo eziphilayo into ebangel 'umdla gqitha ukufunda.

iimpawu zezakhiwo

Ukususela yokucingela indlela yenzululwazi, isityalo nganye - yinkqubo ukuba ikhona imithetho yayo. Flowers babe esilandelayo. Stem kubo - zidityaniswe pedicel kunye isitya apho amagqabi (zibizwa tsvetolistiki ngokwenzululwazi). Ngu tsvetolistikam ke sepals, stamens kunye pistils kunye iintyatyambo. Amaninzi, la macandelo zicwangciswe kumbindi imiqolo eziliqela. Ukuba eso sityalo zombini stamens kunye pistils, zibizwa ulala namadoda, okanye Italasi. Thina dioecious okanye stamens (kulo mzekelo, la madoda intyatyambo) okanye pistils (bethetha Movement yooMama).

Perianth - lo ngomnye candelo ukuba babe iintyatyambo. Isakhiwo yenziwe ngohlobo lokuba isebenza uhlobo nomkhuseli nezityalo ephambili ezitsala ezisasaza. Perianth unokuba imibala eyahlukileyo (kule meko ke a kabini), kwaye zipeyintwe umbala omnye kuphela - kule meko sithetha ezahlukeneyo elula. Stamen, yona inxalenye eyindoda zesityalo iquka cingwana staminal kunye anther. Xa intliziyo intyatyambo na pistil (leyo, ngasendleleni, kusenokubakho ezininzi). Luquka isizalo, isimbo kunye nokubekwa amabala. iimpawu isakhiwo Imbali ezinjalo ukuba ibala ababandakanyekayo ulwabiwo ulwelo elibukhali ngalo rivaleleke ize igcinwe iinkozo umungu. Ngenxa yoko, ngalinye iquka intyatyambo:

• kwisingqusho;
• stamens;
• Corolla;
• zalo;
• epicalyx;
• silahla;
• iindawo;
• interstitials;
• pedicels.

Flowers, ogama isakhiwo mogzhet zahluke, iyohluka, kuxhomekeka kwinani iindawo, indawo yabo nemilo. Umzekelo, utyala kunye stamens kunye pistil ngexesha elifanayo kuthiwa ulala. Ukuba kukho okanye istameni okanye pistil, intyantyambo ubizwa ngokwenzululwazi ngokuba gay. Isityalo kusenokuquka iintyatyambo ezininzi, ezo iqokelelwe yokudubula, kwaye ibe single. Kakade ke, ukuba kuya kuba inflorescences ngokukhawuleza ezimvumvuzelwa, lo gama iintyatyambo ngaphantsi zonakaliswe yi nemiphumela yeemeko engentle yokusingqongileyo. Yokudubula, ke, nako kweentlobo ezimbini: elula (intyantyambo ukwakweli axis main) okanye ezintsonkothileyo (ebandakanya imiyalelo ezininzi iintyatyambo).

isakhiwo Biology flower umisela izixhobo indlela inzima, nto leyo ibandakanya onke amabakala alo kwangoko. Ngokomzekelo, xa umungu oqolileyo, anthers aqale iintsuba, ibangela umungu ukuya ibala le pistil na. Kulapha uvuvuzelo. Hi ndlela leyi, le nto inokwenzeka ukuwela ukuba kwenzeka amaninzi, kodwa maxa wambi kuyenzeka kunye selfing. Le peculiarity le ndlela emnqamlezweni kukuba umungu kuthwalwa umoya, amanzi, izinambuzane, neentaka njalo njalo.