How are the final products in light dependent reactions used?

The final products of the light-dependent reactions of photosynthesis, namely ATP and NADPH, are crucial for the subsequent light-independent reactions (Calvin cycle). ATP provides the energy needed for synthesizing glucose and other carbohydrates, while NADPH supplies the electrons required for reducing carbon dioxide into organic molecules. Together, they facilitate the conversion of light energy into chemical energy stored in sugars, which can be utilized by the plant for growth and energy.