Experiments which explain photosynthesis
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... e Hill Reaction
In 1939 Robert Hill showed that isolated chloroplasts had "reducing power" this, meant that that they could remove oxygen from water in the presence of an oxidising agent. The reducing power was illustrated by using a redox agent which is an agent used in a redox reaction. A redox reaction is a reaction that involves the transfer of electrons from a reducing agent to an oxidising agent. Hill substituted the plants NADP with Fe3+ but it is easier to identify reduction using DCPIP (dichlorophenolindophenol) which changes colourless from its natural blue colour when reduced. Hill's summarised h ...
