Vazifahoi asosii hayoti rastaniho

Hamai rastaniho sokhti hujayragi dorand va onho bo hamdigar aloqamandand. Az in jost, ki vayronshavii sokht va faoliyati hayotii yak uzv ba faoliyati hayotii digar uzv betasir nameboshad.

SHumo aknun ba bisyor khususiyathoi muhimi dokhili va berunii rastanihoi guldor va ba vazifayu khosiyathoi uzvho va boftahoe, ki dar ravandhoi gunoguni faoliyati hayotii onho shirkat mevarzand, shinos shuded. Dar bayni in alomatu khosiyatho, kadome az in ravandhoro ba sifati alomathoi favqulodda muhim va faqat ba organizmhoi zinda khos nomguy kardan mumkin ast?

Avvalo, rastaniho gizo megirand, yane onkho az muhiti beruna moddahoi muayyanro mejabband, onro hazm karda, ba moddakhoi ba jismashon khosbuda tabdil medihand.

Duyum, rastaniho nafas mekashand, yane az havo (atmosfera) oksigenro (gaz) qabul karda, ba berun gazi karbonatro khorij mekunand, chi tavre ki in ravand dar odamon va hayvonot meguzarad.

Seyum, rastaniho mesabzand, qad mekashand, yane botadrij az jihati andoza kalon meshavand, uzvhoi nav ba nav hosil mekunand 96. Vay inkishof meyobad: yane, uzv- hoi nav ba navi hosilshuda on uzvhoero, ki peshtar ba vujud omada budand, aynan dar yak qiyos takror namekunand. Bo guzashti sinnu sol (pirshavi) shakli barg va digar alomatho tagyir meyobad va az hama asosiash on ast, ki dar rastanihoi gul- dor ba juz uzvhoi nashvi, inchunin uzvhoi afzoishi (reproduktivi) niz tashakkul meyoband.

CHorum, rastaniho afzo- ish mekunand, yane monandi digar organizmhoi zinda nasl meguzorand.

Panjum, rastaniho qobiliyati ba tasiri sharoithoi muhiti be- runa javob gardondan va ba onho khudro mutobiq kardanro doro me- boshand. Masalan, dar sharoiti kamobi onho masomahoyashonro mah- kam mekunand, yo in ki bo nazdikshavii fasli zimiston barghoyashon- ro mepartoyand va gayraho, Baze rastanihoi digar boshand, ba sha- roighoi favqulodda nomusoidi biyobonu dashthoi beob, mintaqahoi khunuki tundra, balandkuhho va gayra mutobiqat paydo kardaand.