please tell me about mechanism of photosynthesis
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Light reaction occurs in grana fraction of chloroplast and in this reaction are included those activities, which are dependent on light. Assimilatory powers (ATP and NADPH2) are mainly produced in this light reaction.
Robin Hill (1939) first of all showed that if chloroplasts extracted from leaves of Stellaria media and Lamium album are suspended in a test tube containing suitable electron acceptors, e.g., Potassium ferroxalate (Some plants require only this chemical) and potassium ferricyanide, oxygen is released due to photochemical splitting of water. Under these conditions, no CO2 was consumed and no carbohydrate was produced, but light-driven reduction of the electron acceptors was accompained, by O2 evolution.
4Fe3++2H2O ↔ 4Fe3++4H++O2
The splitting of water during photosynthesis is called photolysis. This reaction on the name of its discoverer is known as Hill reaction.
Hill reaction proves that
(1) In photosynthesis oxygen is released from water.
(2) Electrons for the reduction of CO2 are obtained from water [i.e., a reduced substance (hydrogen donor) is produced which later reduces CO2],
Dichlorophenol indophenol is the dye used by Hill for his famous Hill reaction.
According to Amon (1961), in this process light energy is converted to chemical energy. This energy is stored in ATP (this process of ATP formation in chloroplasts is known as photophosphorylation) and from electron acceptor NADP+, a substance found in all living beings NADP*H is formed as hydrogen donor. Formation of hydrogen donor NADPH from electron acceptor NADP+ is known as photoreduction or production of reducing power NADPH.
Robin Hill (1939) first of all showed that if chloroplasts extracted from leaves of Stellaria media and Lamium album are suspended in a test tube containing suitable electron acceptors, e.g., Potassium ferroxalate (Some plants require only this chemical) and potassium ferricyanide, oxygen is released due to photochemical splitting of water. Under these conditions, no CO2 was consumed and no carbohydrate was produced, but light-driven reduction of the electron acceptors was accompained, by O2 evolution.
4Fe3++2H2O ↔ 4Fe3++4H++O2
The splitting of water during photosynthesis is called photolysis. This reaction on the name of its discoverer is known as Hill reaction.
Hill reaction proves that
(1) In photosynthesis oxygen is released from water.
(2) Electrons for the reduction of CO2 are obtained from water [i.e., a reduced substance (hydrogen donor) is produced which later reduces CO2],
Dichlorophenol indophenol is the dye used by Hill for his famous Hill reaction.
According to Amon (1961), in this process light energy is converted to chemical energy. This energy is stored in ATP (this process of ATP formation in chloroplasts is known as photophosphorylation) and from electron acceptor NADP+, a substance found in all living beings NADP*H is formed as hydrogen donor. Formation of hydrogen donor NADPH from electron acceptor NADP+ is known as photoreduction or production of reducing power NADPH.
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hiiii
mechanism of photosynthesis
The process of photosynthesis is considered as an oxidation-reduction reaction activated by
light absorbed by chlorophyll or certain other substances (e.g., phycocyanin, fucoxanthol), resulting in the evolution of oxygen from water and in the formation of reduced carbon compounds (e.g., carbohydrate) from carbon ...
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mechanism of photosynthesis
The process of photosynthesis is considered as an oxidation-reduction reaction activated by
light absorbed by chlorophyll or certain other substances (e.g., phycocyanin, fucoxanthol), resulting in the evolution of oxygen from water and in the formation of reduced carbon compounds (e.g., carbohydrate) from carbon ...
hope it's helpful to you
mark me as brainliest pls
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adikhanna:
your answer is brainalist answer.
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