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

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Solution :Important events of light reaction :
(i)CHLOROPHYLL GETS excited and releases a pari of electrons with the use of whose energy ADP + Pi combines and ATP is formed. This process is known as photo - phosphorylation.
(ii) Spliting of water molecule.
(a) `2H_(2)O RARR 4H^(+) + 4e^(-) + O_(2)`.
`NADP + 2H^(+) rarr NADPH_(2)`
The final products of light reaction are NADPH and ATP.
The use of ATP and `NADPH_(2)` is done in DARK reaction. `O_(2)`is produced by decomposition of water.


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