what is the main function of the light reactions
Best Answer: The main function of these reactions is to provide a source of ATP and reduced NADP which are used to reduce CO2 in the light independent reactions. The main function of the light dependent reaction is to produce ATP and NADPH, that can be used later in photosynthesis. it particularly is chlorophyll A it particularly is of extreme value in gentle-based reactions. The power from the gentle (photons) are transmitted to chlorophyll a molecule, that's ionized and releases its electrons.