Cellular Respiration Process Summary. Metabolism is the process by which living organisms acquire energy from external sources and utilize it internally in order to carry out necessary cellular activities. Cellular respiration involves many of these reactions.
To create atp and other forms of energy that they can use to power their life functions, cells require fuel and an electron acceptor which drives the chemical process of turning energy from that fuel into a useable form. The process occurs in two phases: The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or krebs cycle, and oxidative phosphorylation.
It was probably one of the earliest metabolic pathways to evolve and is used by nearly all of the organisms on earth.
Here through a simple process called photosynthesis, plants use sunlight to turn carbon dioxide and water into glucose. But in plants, cellular respiration is slightly different. Also, photosynthesis occurs only when. C6h12o6(glucose) + 6o2 → 6co2 + 6h2o + ≈38 atp
