Cellular Respiration Equation Definition. Respiration is a metabolic process common to all living things. Cellular respiration is a catabolic process by which organisms break down nutrients to release energy.

It has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain. The overall equation of photosynthesis differs from the reverse of the overall equation of cellular respiration in that sunlight is not needed in the reverse of cellular respiration. Cellular respiration occurs within almost all organisms on the earth.

Cellular respiration is what cells do to break up sugars to get energy they can use.

To create atp and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form. Cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. Likewise, “biological machines” also require well engineered parts and good energy source in order to work.perhaps the second most important molecule (dna is the first) is adenosine triphosphate (also known as atp).basically, atp serves as the main energy currency of the cell. All organisms respire in order to release energy to fuel their living processes.