the signifcance oF splitting water during photosynthesis?
in water-splitting during photosynthesis.
The major breakthrough according to Lyubinetsky is that water itself can work as a catalyst. We are familiar with the fact that a catalyst is a molecule that affects the rate of a chemical reaction and remains unchanged in the procedure. He observed, “Water is required to move the adatoms around, but like a catalyst it is not consumed in the reaction. You start with water and you end with water.”
20/08/2014 · Water-splitting in photosynthesis ..
So how can these factors have an effect on the rate of photosynthesis? Lets start off with the light intensity. When the light intensity is poor, there is a shortage of ATP and NADPH, as these are products from the light dependent reactions. Without these products the light independent reactions can't occur as glycerate 3-phosphate cannot be reduced. Therefore a shortage of these products will limit the rate of photosynthesis. When the carbon dioxide concentration is low, the amount of glycerate 3-phosphate produced is limited as carbon dioxide is needed for its production and therefore the rate of photosynthesis is affected. Finally, many enzymes are involved during the process of photosynthesis. At low temperatures these enzymes work slower. At high temperatures the enzymes no longer work effectively. This affects the rate of the reactions in the Calvin cycle and therefore the rate of photosynthesis will be affected.