It is energy source
ATP
The purpose of the cellular respiration is to make carbondioxide(CO2), water(H2O) and energy which is called ATP or (Adenosine triphosphate). The main purpose is to create the ATP energy however.
Think of ATP (and ADP) as a battery ... storing energy to be used as needed.
ATP
The main purpose of respiration is to produce energy in the form of ATP (adenosine triphosphate) by breaking down glucose molecules in the presence of oxygen. ATP is the primary energy source used by cells to carry out their functions.
Reticulate bodies are often termed "energy parasites" because they lack an enzyme system for producing ATP.
to produce ATP, Adenosine Triphosphate
To make ATP.
To protect their bodies.
Mitochondria produce energy in the form of ATP. They are the cell's biochemical 'power factories'
The purpose of respiration - aerobic or anaerobic - is the production of ATP.
ATP isn't created during the process of photosynthesis. Photosynthesis merely creates glucose, which is afterwards consumed to create the ATP. This ATP, however, serves the purpose all ATP does in the body: energy that the cell can use.