WHAT IS HAPPENING INSIDE A BODY.
1. I filled my lungs with fresh air rich with oxygen.
2. The molecules of oxygen then passes through thin walls of alveoli in the lungs into the blood.
3. Here it attaches itself with hemoglobin in my blood.
4. My beating heart pump this oxygenated blood back to all parts of body.
5. The hemoglobin then releases the oxygen so that it can enter into the every cell of body.
6. Within every cell there is mitochondria which reduces oxygen by transfer of electrons to create
energy into the form of ATP [ Adinosine Tri-phospate ] and produces by product of water.
7. This way we get energy and life and this process goes on inside our body without a hitch always.
8. But, process of releasing four electron needed always to reduce oxygen to water does not happen.
9. When it not happens usually , then the FREE RADICAL is produced.
Utilizing oxygen during normal metabolism within the cell to create energy this free oxygen
radicals are produced and they are electrical charge and madly looks for an electron from
any molecule or substances in their vicinity.
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