Respiration is the process in which Oxygen and Glucose is made into Carbon Dioxide, Water, and ATP.

The products CO2 and H2O go into the cycle of Photosynthesis. Then, these are used in turn to make glucose, some of which goes back to the cycle of Respiration, and the rest goes into the plant tissue. In this way, these two processes are interlinked and dependant on eachother. Finally, the ATP is used by the plant to live and grow.

The chemical formula:

O2 + C6H12O6 -------> CO2 + H2O + ATP