Sannun ku! Ta yaya zaku shiga raƙuman zafi? Tabbatar kun ƙara yawan shan ku, dama? Kuma shi ne cewa jikin mutum, kasancewar ana fuskantar shi da irin wannan zafin, yana fitar da ruwa cikin sauri ta hujin fata. Don haka, lokacin da iska ta wuce, takan sami damar yin sanyi, ko kuma aƙalla tana gwadawa. Wannan tsari an san shi da zufa, kuma wani abu ne wanda shima yake faruwa a halittun shuke-shuke.
Idan kana sane da yadda tsirrai ke korar ruwaKaranta don ƙarin koyo game da wannan abin mamakin.
Don samun ruwa, muna samun kwalba ko gilashi, amma tsire-tsire suna tsotse shi ta asalinsu. Tsarin tushen zai iya fadadawa a kwance, yana kusa da farfajiya, ko kuma yana iya rawar ƙasa zuwa cikin ƙasa gwargwadon inda akwai danshi. Da zarar sun sami ruwa, sai a aika ruwan nan da nan zuwa ga mai tushe da ganye domin aiwatar da hotuna da kuma tabbatar da ingantaccen tsiro. Duk godiya ga xylem kuma zuwa phloem.
Amma ba shakka, wane aiki ne waɗannan partsan sassa masu ban mamaki ke da su? Ya fi sauƙi bisa ga alama. Xylem shine katako mai katako wanda aka samo a cikin tushe, kuma shine da alhakin jigilar ruwa, gishirin ma'adinai da sauran abubuwan gina jiki mahimmanci a cikin shugabanci na sama zuwa duk sassan tsire-tsire; phloem, a gefe guda, transports da brewed ruwan itace, wanda ya kunshi kayan abinci masu gina jiki wadanda kwayoyin halittar photosynthetic ke samarwa - ma'ana, wadancan sassan halittu masu dauke da kwayoyin chlorophyll- a cikin hanyar zuwa ga asalinsu.
Don rayuwa dole ne ku numfasa, kuma yayin aiwatarwa babu makawa rasa ruwa. Shuke-shuke "kawar da shi" ta hanyar tururin ruwa duk abin da basa bukata, fitar dashi ta pores din (ko stomata), wanda yake gefen ƙasan ganyen, yayin da suke buɗewa.
Yi gwaji mai zuwa tare da dangin ku don tabbatar shukokin ku suna numfashi: kunsa ganyen a cikin jakar leda mai bayyana. Za ku ga cewa, lokacin da wani gajeren lokaci ya wuce, akwai digon ruwa a ciki, alamar da babu shakka cewa tana raye, don haka tana numfashi.
Kuna da shakka? Shiga ciki lamba tare da mu.