Tala limeleng le litšobotsi tsa lona

semela tala ke rarahaneng 'meleng-skeletal thulaganyo ka eo dimela sokolla eneji, le motlakase, e leng ka mahlaseli a letsatsi ka lik'hemik'hale eneji, le sebelisoa ka metsoako manyolo. Motheong oa tshebetso ena ke ketane redox lik'hemik'hale, ka lebaka la tseo dieleketerone ba isoa ho tloha moemeli mofani-fokotsa, e leng hydrogen, le metsi, ho acceptor ea, ke oxidant. Foromo ena lik'habohaedreite le O2 Ho lokolloa lilemong tsa ho kena moea tsa metsi.

Tala dimela na le mehato tse peli tse latellanang. Mokhahlelo oa pele o bitsoa leseli (photochemical). Mothating ona, ho quantum khanya matla a fetoloa eneji, le lik'hemik'hale tsa maqhama metsoako phahameng-matla, hammoho le reductant bokahohleng. Ka mohato oa bobeli, ho ba le lebitso la lefifi (metaboliki) o ile a fumana ho tswa ho matla lik'hemik'hale tsa moemeli fokotsa le bokahohleng fetisetsana sekgoqetsane bakeng fixation le phokotso ea carbon dioxide, oo ka oona lik'habohaedreite ba thehoa. photosynthetic mochine arola leseli le lefifi mohato, eseng feela ka nako empa hape le sebaka. Khanya sethaleng nka sebaka ka e khethehileng eneji, le ho sokoloha lera la thylakoid, ha liphetoho lefifi nka sebaka e ka ba chloroplast stroma, kapa cytoplasm ena.

Tala le dimela respiration o thehiloe absorption ea quanta leseli, moo karolo ea ka sehloohong e bapaloang ke chlorophyll absorption manyenyane e kenyeletsang bonahalang sebakeng, 'me proximal tlhokeng karolo go la la le libaka mahlaseli. The pigment sehloohong dimela bohle ho phetha tala ke chlorophyll ka. Tala dimelametsing, mosses le dimela vascular tse eketsehileng le chlorophyll, b, e fetela le ho a manyenyane la leseli ananelang. Mefuta e meng ea dimelametsing na chlorophyll, c le d. Ho phaella ho chlorophyll, ka tshebetso ya ho absorption khanya boetse ho na le akaretswago carotenoids le phycobilins.

Mora absorption ea leseli le hlaha mohato photochemical ka tse amehang mefuta e 'meli ea photosystem ke le II (PS1 le naruto ps2). E mong le e ba APS na le setsi sa ba itšoara joang, ao ho 'ona qoso karohano etsahala, motlakase ketane lipalangoang, moo elektrone ho kena moea, le sete ya dikarolo hore phetha dithulaganyo tsa photooxidation metsi le nchafatso ea setsi sa ba itšoara joang. Litsing itsoara joang ka ea khanya eneji, le quantum e fetoloa lik'hemik'hale, 'me joale e ntan'o ba dieleketerone susumelletsa ho ea ka kretiente ya bokgoni ba sa motlakase ya, molao, elektrone ea lipalangoang ketane ea tse tala e.

Photosystem II mofuta o etsa photooxidation itsoara joang ka ea metsi, ka tsela eo eaba ba etsa oksijene le protons H +. E tšoanang le photosynthetic elektrone lipalangoang thulaganyou e etsahala le proton phetiso tloha chloroplast le ka intrathylakoid sebakeng. The liphetoho sephetho le hlahisa NADPH le ATP, tse lihlahisoa e ka sehloohong ea tala. Ho feta moo le tala tsa dimela ke karolo ea enzymatic itsoara joang ka seo carbon dioxide e fumaneha lihaha-'mele, lik'habohaedreite le mafura. Ha lefifi bao e seng k'habohaedreite metabolism na directivity, ho thehoa-amino acid, metsoako manyolo le liprotheine.

dithulaganyo tshilong ya dijo tsa mofuta CO2 fixation ba arotsoe ka C3, C4 le Cam tala. Ka tsela eo lik'habohaedreite, tse thehoa ka ho ba sethaleng lefifi la tala ka chloroplasts ka beha ka mokgwa wa starch metsoako tsoa ho chloroplast ho theha lisele tse ncha ho ea sebeletsa e le mohloli oa matla bakeng sa liphetoho tshilong ya dijo.

semela tala sebedisa liphesente tse 1-2 feela ba ananelang sebelisa khanya. Le matla tshebetso ya tala ama sebopeho spectral le matla a leseli, mocheso, kalafo metsi limela le matsoai phepo e nepahetseng, ea mahloriso ea CO2 le O2, hammoho le mabaka a mang a tikoloho.