What is the light phase of photosynthesis?

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Plants absorb light using the pigment chlorophyll during the light reaction. Most of this is captured in leaves and any other green parts of a plant. Algae can also carry out photosynthesis.  One molecule of chlorophyll absorbs one photon of light and loses an electron. This electron goes to pheophytin, to...

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Plants absorb light using the pigment chlorophyll during the light reaction. Most of this is captured in leaves and any other green parts of a plant. Algae can also carry out photosynthesis.  One molecule of chlorophyll absorbs one photon of light and loses an electron. This electron goes to pheophytin, to quinone to start the flow of electrons down an electron transport chain. Eventually, NADP is converted to NADPH in plants, which is a reduction reaction. This will create a photon gradient across the chlorplast membrane. Then, ATP synthase which is an enzyme, synthesizes ATP. After water is split due to photolysis, an electron is regained by the chlorophyll. The oxygen released from splitting water, combines with another oxygen to form an O2 molecule. This is released by the stomates in the leaves to the atmosphere. The hydrogen from the water, will combine with the carbon dioxide in the leaf during the light independent reactions, to form the carbohydrate glucose.

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