In: Biology
Briefly describe the linear flow of electrons from water to NADPH during the light reaction of photosynthesis.
Electron transport chain during photosynthesis occurs in thylakoid membrane during light reaction in the presence of Sunlight.
It begins with the absorbance of solar energy by chlorophyll molecules located in thylakoid membrane. The sunlight is absorbed by reaction center of chlorophyll. It results in the photolysis of water into Oxygen and results in the Liberation of electron from water.
The absorbance of Sunlight results in the excitation of electron and the electron is accepted by photosystem 2.
The electron is passed on to cytochrome B6F Complex by plastoquinone which is the mobile electron carrier.
From cytochrome B6F Complex, the electron is passed onto photosystem 1, through plastocyanin which is also a mobile electronic carrier.
From photosystem 1, the electron is expected by NADP+ through ferrodoxin which results in the formation of NADPH.
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