Final answer:
ADP, ATP, NADPH, and NADP+ are important intermediates in photosynthesis that capture and store energy from sunlight. However, they are not included in the overall equation for photosynthesis because they are not the end products of the process.
Step-by-step explanation:
The net equation for photosynthesis does not include ADP, ATP, NADPH, and NADP+ because these molecules are not the end products of the process. The overall equation for photosynthesis focuses on the inputs (carbon dioxide and water) and outputs (oxygen and glucose) of the process. ADP, ATP, NADPH, and NADP+ are important intermediates in the light-dependent reactions of photosynthesis, where they are used to capture and store energy from sunlight. This stored energy is then used in the light-independent reactions of photosynthesis to fix carbon dioxide and produce glucose.