The importance of Oxygen for your life?

Answer 1

Oxygen is not the main constituent of Earth's atmosphere, comprising 21% of the total compared with Nitrogen's 78%, but its role in the survival of many forms of life elevates its significance. Most people are well aware of the important role oxygen plays in metabolic processes, but the fact that oxygen in the atmosphere owes its existence as much to life as life owes its existence to it is often overlooked. It was life itself that created an oxygenated atmosphere and continues to maintain it. Oxygen is what is known as a highly reducing gas: it likes to combine with other molecules like atmospheric gases or surface rocks. It is the second-most electronegative atom in the periodic table after flourine; this means that oxygen has a strong tendency to rip electrons from other atoms. As a consequence, any given oxygen molecule has a relatively short lifetime in the atmosphere. Before the rise of photosynthesis, a process which produces oxygen and continues to this day to replenish our supply, Earth's atmosphere had no appreciable quantity of oxygen whatsoever. Prior to 3.45 billion years ago, Earth's atmosphere and oceans were anoxic (i.e. without oxygen). This is supported by the existence of mass-independent fractionalization (MIF) of sulfur isotopes in sediments from this time period, for these can only form in the absence of oxygen . Then, between 2.45 and 1.85 billion years ago, molecular oxygen appeared, albeit at a small fraction of the current atmospheric level, due to the evolution of photosynthetic cyanobacteria. Photosynthesis works by combining CO2 and H2O with energy derived from light to form O2, an additional amount of H2O, and glucose (C6H12O6 ) which the plant may then use for energy. The photosynthetic equation may be written as: 6 CO 2 + 12 H 2O + photons → C 6H 12O 6 + 6 O 2 + 6 H 2O

Answer 2

Oxygen is necessary for the process of aerobic respiration, which extracts the energy from glucose making ATP (adenosine triphosphate) which is used to power the various cellular metabolic processes.

If there is not enough oxygen (either due to a surge in metabolism beyond what the normal supply of oxygen can support or due to oxygen deprivation) the body will fall back to the anaerobic process of lactic acid fermentation, which extracts the energy from glucose (less efficiently than aerobic respiration) making ATP (adenosine triphosphate) which is used to power the various cellular metabolic processes. The lactic acid waste product produced is mildly toxic and unlike the waste product of aerobic respiration (carbon dioxide) cannot be carried away by the blood and exhaled through the lungs, so its buildup causes a painful burning sensation in those parts of the body that use it (hopefully only temporarily until enough oxygen is again available).

Answer 3

It's very good question! Oxygen has got very important role to play in your body. You will die in about five minutes time, without the oxygen. Your body constantly needs the energy for the proper functioning of the metabolic process. There is oxidation of carbon and hydrogen, that gives you this energy. This oxidation is done in multiple small steps. So that you do not get burned out and energy is released step wise. The carbon and hydrogen is available in your food. That can be stored in fairly large amount in your body. There is no arrangement in your body to store the oxygen. Oxygen is sparingly soluble in the water. (Still marine life sustains!) The exchange of oxygen occurs through very large surface area of the lungs. (About 1100 square feet.) Oxygen is carried to various body tissue by specialized cells called as red blood cells. They contains special molecule called as hemoglobin. It holds the oxygen strong enough to carry away from lungs and loose enough to give away at tissue level. You need constant supply of oxygen through out your life. Interestingly 100 % oxygen for long time is poisonous to your body.

Answer 4

it effects ur every day life on ur dingaling have a good day lol putty