What is the relationship between the light reactions and the carbon dioxide-fixing reactions of photosynthesis

Answer 1

The light reactions produce the energy and the reducing power, ie. NADPH) for the reduction of CO2 and the addition of the hydrogens from water to produce C6H12O2.

http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html
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