Question

which substance that is produced during the process of photosynthesis is used for the completion of cellular respiration?
water
atp
nadph
o₂

Explanation:

During photosynthesis, plants use carbon - dioxide and water in the presence of sunlight to produce glucose and oxygen. Oxygen produced in photosynthesis is used in cellular respiration as the final electron acceptor to produce ATP. Water is a reactant in photosynthesis, not a product used for cellular respiration. ATP and NADPH are energy - carrying molecules in photosynthesis but are not the substance from photosynthesis used directly for cellular respiration completion.

Answer:

O₂