Ilimi:Ilimin sakandare da makarantu

Bayarwa na ganye: iri, tsari, misalai

Farin yana da wani ɓangare na tsire-tsire kuma yana samar da wasu ayyuka masu mahimmanci. Ɗaya daga cikin su shi ne ganin wani ruwan sama mai saukowa da saukowa tare da abubuwan da ke gina jiki. Wannan yafi faruwa da taimakon fibrous vascular bugun - veins. Za a iya ganin su a kan leaf leaf tare da ido mara kyau. Bayarwa na ganye, da nau'ikansa da fasali na aiki kuma za a yi la'akari da su a cikin labarinmu.

Mene ne ƙwayar ganye

Tabbas, la'akari da leaf leaf, ka lura da alamu mai mahimmanci akan farfajiya. Wannan shi ne veins na ganye. Amma wannan ba kawai zanen halayyar ba ne. Yana wakiltar conductive abubuwa na shuka nama. Sugar, wanda ake kira fuka-fuka na filaye na jijiyoyin jini, sun hada da jiragen ruwa da kuma tubes. Na farko ya samar da ruwa mai zurfi. Gininsa ya kasance a cikin motsi na ruwa tare da ma'adanai da aka narkar da shi daga tushe zuwa ganyayyaki. Wannan tsari yana da mahimmanci, domin saboda tsarin hotuna photosynthesis wani yanayi ne mai mahimmanci.

Bayar da ganye yana ba da tsari na baya. Dalilinsa ya kasance a cikin motsin kwayoyin halitta waɗanda aka kafa a cikin leaf a lokacin photosynthesis, zuwa wasu sassa na shuka. Ana yin haka ne ta hanyar tsantsa daga jikin mai gudanarwa. A matsayinka na mulkin, tasoshin suna samuwa a sama da sharaɗun sharaɗɗa kuma suna samar da takarda da ake kira core sheet.

Nau'in leaf venation

An shirya suturar fibrous na jiki a cikin ganye a hanyoyi daban-daban. Yanayin wurin su - wannan ita ce cinyewar ganye. Wannan fasalin yana cikin tsari. Wannan yana nufin cewa ta hanyarsa zai yiwu don ƙayyade ɗayan ɗayan ɗakin. Alal misali, net veining hankula da ganyen dicots. Irin wannan tsari yana da ganyen cherries, pears, apples. A layi daya da kuma arc - don monocots. Misalan tsire-tsire da irin wannan launi suna lily na kwari, leek, alkama, sha'ir. Halin saukowa yana da sauƙi don ƙayyade ido. Bari mu dubi ainihin iri.

Daidaita saduwa da ganye

Akwai dangantaka mai zurfi tsakanin irin leaf leaf da venation. Ka yi la'akari da wannan don misalin alkama. Wannan injin tare da ganyayyakin labaran itace mummunar sako. Yin watsi da shi zai iya zama da wahala. Kwayoyin da ke kan waɗannan ganyayyaki suna kusan kusan ɗaya. Irin wannan fansa an kira shi a layi daya. Yana da halayyar dukkanin hatsi, waxanda suke wakilci na 'yan karami.

Arc vein

Idan leaf leaf ya fi fadi, amma elongated, da veins fito daga tushe. Bugu da kari suna raguwa a cikin nau'i na arcs, amma an haɗa su a saman. Ba za a iya bambanta kawunansu daga cikinsu ba, tun da yake duk suna da siffar da girmansu. Wannan jigon ganyayyaki, wanda yake kama da plantain, Lily na kwari, tulip.

Sanya threading

Irin wannan fansa yana samuwa da yawa a yanayi. Wannan hujja yana da sauki a bayyana. Hanyoyin ganye da yawa sune halaye na dukkanin wakilai guda biyu, kuma suna da matsayi mafi girma a duniya. Game da yawancin nau'o'i da nau'o'in jinsunan, sun fi duk sauran abubuwa.

Kowa da kowa ya gani da Maple ganye ko apple. Sun fito fili sun fito fili. Daga gare ta, ƙananan ƙwararrun ƙwayoyin fibrous fascicles na tsari na biyu sun ƙara a duka wurare. Dangantaka da juna, sun kasance kusan kusan daya. Daga sassan na biyu tsari, bi da bi, har ma ƙarami sun tashi. Tare suna samar da wata cibiyar sadarwa mai mahimmanci na nama mai launi na leaf leaf. Don yadda za a samar da dukkan abubuwan da suka cancanta don rayuwa, wannan shine mafi kyawun irin cin nama. The shuke-shuke na Rosaceae iyali, kabeji, Bean, Solanaceae, Asteraceae ne misali.

Don haka, bari mu taƙaita: zubar da ganyayyaki shine yanayin wurin da ke dauke da suturar furotin a kan farantin. Su abubuwa na conductive masana'anta da kuma tabbatar da motsi na gina jiki a cikin shuka. Akwai manyan nau'o'i uku: raga, layi daya da arc.

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