How does photosynthesis store energy?
photosysntesis medium of conversion of light energy into chemical energy.
Photosynthesis is required for conversion of light energy through light reaction or hill's reaction followed by dark reaction. photosynthesis provide the agents required for formation of energy unit i.e., glucose or other sugars. it is as the previous answer mentioned it is the chloroplast which is stores the food for later use.
this stored food is also transported to the plant using phloem. (phloem transport)
Anybody is welcome to correct me