What is phosphorylation ?

Phosphorylation:
phosphorylation is the formation of ATP by the addition of phosphate group to ADP...
there are two types of it
1 cyclic phosphorylation
2 non cyclic phosphorylation

Phosphorylation, binding organic molecule is a phosphate group. 
Phosphorylation occurs differently-5: 
Oxidative phosphorylation, ATP is formed by oxidation of foods pathway. Photophosphorylation, ATP production in cells of the light energy. In substrate level phosphorylation, ADP-phosphate group of a reactive intermediate with the transfer of a chemical reaction in which ATP is generated. Protein phosphorylation in proteins serine, threonine or tyrosine residues, via a kinase enzyme is the addition of a phosphate group. In chemistry, called organophosphate esters of phosphoric acid.

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