Cellular respiration is imperative in the process of gaining useful energy for cells. It is a process in which metabolic reactions covert nutrient molecules into ATP (adenosine triposphate) and then release waste products.
A key component in cellular respiration or oxidative metabolism is Oxygen (O2) and in turn Carbon Dioxide (CO2) removal. Most often the process involves the complete breakdown of glucose to CO2 and water (H2O). Please see equation:
C6H12O6 + 6O2 → 6CO2 + 6H2O + ENERGY
In the equation, oxidation occurs between glucose (C6H12O6) molecules and 6 Carbon Dioxide (6CO2) molecules, therefore causing a reduction in sugar (6O2) and 6 water molecules (6H2O).
Glucose has numerous amounts of energy and its breakdown of O2 and H2O (which are low energy molecules) releases it. This released energy will be used in the production and collection of ATP molecules.
Cellular respiration, although an important process, occurs slowly and gradually because its immediate release would cause huge energy loss and non-usable heat.