Question

why are photosynthesis and cellular respiration complementary to each other? they both occur in plant cells only, not in animal cells. both of the processes create the exact same byproducts. the byproducts of one are the reactants of the other. both of the processes use the exact same reactants.

Explanation:

Photosynthesis uses carbon - dioxide and water to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon - dioxide and water. So, the byproducts of one are the reactants of the other.

Answer:

The byproducts of one are the reactants of the other.