Answer:
The input of photosynthesis is the vise versa of respiration. This means that the input of photosynthesis is the output of respiration. The input of respiration is the output of photosynthesis.
The over all reaction of photosynthesis can be written as :
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
The overall reaction of respiration can be written as:
C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP
These reactions are opposite of one another. The reactants of one of these are the products of the other one.