What is a free radical , how it is formed in side our body ? befor going to learn about free radicals we need to know abit about cellular electronics. electronics is nothing but the conduction of electrons thorgh a semiconductor , the same way there is a conduction of electrons in between cells and oxygen. the mitochondria in side the cell act as acondutor in this case. role of mitochondria is to reduce oxygen by supplying 4 electrons. These 4 electrons are transfered throgh a series of coplex reactioons in the mitochondria, these are called electrone transfer chains. There are many enzymes and co enzymes in mitochondria that hav a major role in this electrone treansfer.Normally in a typical cell this 4 electrones are thransfered with out any problems but what happens if our mitochondria cant able to supply the required 4 electrones to oxygen. A free radical of oxygen is formed . free radical of oxygen is an oxygen atom with an unpaired electron in it. so the number of protones in the atome will be grater than the electron, this gives a positive charge to the oxygen atom.these free radicals of oxygen are highly reactive, and they need an electron soo badly to get nutrilized.in order to get this electron, free radicals react with cell particles , LDL cholesterole, DNA, ect... this reactions will result in the oxidization of cell particles..
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