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The light dependant reaction
Photosynthesis can be split into two stages

In the Light dependant reaction ATP is made by Photophosphorylation
In the light dependant reaction, the light energy absorbed by the photosystems is used for three things:
1) Making ATP from ADP and inorganic phosphate. This reaction is…

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Cyclic Photophosphorylation only produces ATP
Cyclic Photophosphorylation only uses PS1. Its called `cyclic' because the electrons from the chlorophyll molecule
aren't passed onto NADP, but are passed back to PS1 via electron carriers. This means the electrons are recycled and
can repeatedly flow through PS1. This process doesn't produce…


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