Do you know the air we breathe daily to survive? This air is oxygen (O2) it needs a process called biogeochemical to move and guarantee the air for the environment and living beings.
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Oxygen is of great importance in the cellular respiration process in addition to the formation of the ozone layer and combustion. Its cycle is extremely essential, the oxygen compound appears in various forms in nature, such as (O2) (in the form of gas) in the water molecule (H2O) and finally in the carbon cycle (CO2), both are commonly related to the oxygen cycle.
It is very important to note that 21% of the Earth's atmosphere is composed of molecular oxygen, in addition to being found in the atmosphere, it can also be seen in the biosphere and lithosphere.
See too: nitrogen cycle
The components of (The2), as already studied, is present in two extremely important processes, such as photosynthesis and cell respiration, in addition to these two processes, there is transpiration and organism decomposition, all release molecules that can be broken down to form other molecules so that oxygen release occurs, let's study each one from them?
Photosynthesis (synthesis using light): Photosynthesis is one of the most important processes of all action, when we breathe we produce carbon dioxide, photosynthesis acts to capture this carbon and fix it in organic molecules, that is, the (CO2) is present in organic molecules and with the photosynthesis process it releases oxygen back into the atmosphere (middle)
To better fix the idea of photosynthesis:
Here is an image of the photosynthesis process for a better understanding:
Cellular respiration: The body's cells (organisms that breathe oxygen) use the molecule (O2) to produce energy, oxygen reaches the organelle forming a cycle of electron transport chain or respiratory chain, this energy (glucose molecule ions) is added to a phosphorus in the molecules generating energy, energy that the body is used to use. Oxygen and the final electron acceptor binds the water molecule used in other organisms, or can be eliminated in it.
Breathing removes oxygen from the atmosphere and transforms it into water molecules, that is, the ratio of the water cycle to oxygen. The oxygen that was used in breathing returns to the environment in the form of water molecules and carbon dioxide
We cannot fail to mention that oxygen is used in the process of decomposition and combustion, during the final process important substances such as water and carbon dioxide are released.
After all the process mentioned here, we know that the importance of the oxygen cycle is enormous, because without it there is no survival in any space on earth, it is essential for almost everything, mainly for our cellular respiration, it has a great contribution in the formation of the ozone layer, and is present in two very important stages, the decomposition and combustion.
Did you know that the ozone layer is part of a process made by oxygen? Yes, this action takes place through the sun's ultraviolet rays, this action provides the emergence of the layer of ozone, oxygen works as a kind of filter, that is, it reduces the ultraviolet solar radiation in the layer terrestrial.
Another interesting point is that the ozone layer works as a natural sunscreen, that is, it protects from radiation solar, if there was not this whole process, the risk of having skin diseases, such as skin cancer, would be very bigger.
Unfortunately, the ozone layer and the oxygen cycle are constantly threatened by man, in the oxygen weaving, man produces a great increase in the release of carbon dioxide, through burning of fossil fuels deforestation, various burnings directly affecting the air we breathe, that is, the air bringing pollutants that directly affect the respiratory system, causing illnesses. The ozone layer is not left out, the gases destroy the ozone levels in the atmosphere, gases these are called chlorofluorocarbons (CFCs), these gases were used in sprays and refrigerators. prohibition.
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