Role of Oxygen in a Human Body
The role of oxygen in sustaining life earth cannot be over-emphasized so much so that life cannot exist should there be no oxygen. The human body contains around two-thirds of oxygen. Through respiration the gas is transported to lungs and is absorbed in the bloodstream in the lungs. Afterwards, it reaches every cell in the body. The reactive element is responsible for breathing processes and metabolism in the living organisms.
It is said that only living cells that do not need oxygen are anaerobic bacteria. They get their energy from other metabolic processes. Complex enzymatic processes are involved in the oxidation of nutrient compounds inside of our cells. The oxygen burns the food which releases energy. It is imperative that oxygen is present in the right proportion in the body for supporting cell respiration. The non-metallic element is important for triggering and maintaining energy metabolism of living organisms. A living is the place where all biochemical activities called metabolism happen.
Metabolism is responsible for all changes in the human body-physical as well as chemical. It replaces old tissues with the new ones, converts food into energy and disposes off waste material. It is also responsible for reproduction. In fact, all activities that make it possible for life to exist happen because of metabolism. Molecular oxygen is vital for cellular respiration in all aerobic organisms. It is said that a liter of blood has the capacity to dissolve 200 cc of oxygen gas, which is significantly higher than the capacity of water to dissolve oxygen.
Oxygen is transported through blood to body tissues that require oxygen and is combined with an enzyme (monooxygenase). The enzyme uses oxygen as a catalyst for various oxidation reactions in the body (metabolism). Carbon dioxide is released from the cell and is transported back to the lungs through blood. This process keeps repeating itself. Although the oxygen is vital for life and is responsible for oxidation or burning of food for generating energy and heat for our bodies, it is also present in certain types of altered oxygen molecules called Free Radicals, which are always present in our bodies. They damage their own cells causing degeneration and diseases like cancer. There are many research papers that cite production the free radicals as the primary cause of aging.
It is said that you are as old as your cells. By using special antioxidants, it is possible to achieve cellular rejuvenation, life extension and improved vitality. It will make your cells look as well act younger.