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What are the important events and end products of the light reaction?

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Answer - The important events and end products of the light reaction are listed below. 

  • Light absorption - it is carried out with the help of light-harvesting complex or the LHC. The photosystem is composed of everal pigments which form the antennae. The pigments help in absorbing light of various wavelengths. The chlorophyll a molecule works as the centre at which the reaction occurs. 
  • Water splitting - the solar energy absorbed by the plant helps in splitting the water molecules to release oxygen and hydrogen ion. The electrons released during this step is used by the NADP ion to form NADPH. 
  • Oxygen release - the oxygen which is results from the water-splitting process moves out through the stomatal opening. 
  • Formation of ATP and NADPH - the light reaction results in the formation of two high energy intermediate compounds, ATP and NADPH. 
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