Question

Write short notes on the following:
Hill reaction

Answer 1

The Hill reaction is the process of reduction of a final electron acceptor by the hydrogen ion of water in presence of light. It results in the production of oxygen. In the organism, the final electron acceptor is NADP${}^{+}$. The rate of Hill reactions can be measured in isolated chloroplasts. In laboratory, HIll reagent is used as an artificial electron acceptor that change color when it is reduced. An example of a Hill reagent is 2,6-dichlorophelindophenol (DCPIP).