The stages of the light-dependent reaction involve chlorophyll photoionization, water photolysis to replace electrons and produce hydrogen ions and oxygen, active transport of protons into thylakoids, formation of a proton gradient, proton transport through ATP synthase to produce ATP, and reduction of NADP to NADPH.
Etapele reacției dependente de lumină includ fotoionizarea clorofilei, fotoliza apei pentru a înlocui electronii și a produce ioni de hidrogen și oxigen, transportul activ al protonilor în tilacoizi, formarea unui gradient de protoni, transportul protonilor prin ATP sintază pentru a produce ATP, și reducerea NADP la NADPH.
| Front | What are the stages of the light dependent reaction |
|---|---|
| Back | light striking the chlorophyll leads to photoionization and the electron becomes excited Electrons lost by chlorophyll are replaced by the electrons produced from the photolysis of a water molecule which produces hydrogen ions and oxygen. Some of the energy from the electrons released from the chlorophyll is used to actively transport protons into the thylakoids using a proton pump. The actively transported protons create a concentration gradient on the thylakoid side and the hydrogen ions are transported through the ATP synthase channel. The hydrogen ions are taken up by an electron carrier NADP and becomes reduced to form NADPH |
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