Question

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

Explanation:

Photosynthesis uses carbon - dioxide and water to produce oxygen and glucose. Cellular respiration uses oxygen and glucose to produce carbon - dioxide and water. So, the byproducts of one are the reactants of the other. Also, cellular respiration occurs in both plant and animal cells, and the reactants and byproducts of the two processes are not the same.

Answer:

The byproducts of one are the reactants of the other.