Answer:
ATP, NADPH, and O2 are all products from a light-dependent reaction.
Explanation:
We start with these reactants (starting elements): H2O, CO2, and continuous energy (light). This part of photosynthesis takes place in the thylakoid membrane, and requires light. Photosystems (PSII & PSI) absorb light to make ATP, they remove H+ from H2O in order to turn NADPH+ into NADPH. This releases oxygen (O2). These photosystems are proteins.
