Explain the Phosphorous Cycle of biosphere

The phosphorous is a vital component of nucleic acids, bones, ATP and teeth. It is inorganic in nature and it plays an important role in the metabolic reactions. It releases the energy and is utilized in the various functions of body. It mainly occurs as a phosphate and is utilized in the industries as well as detergents. It occurs in the nature, soil, rocks or in combination with the other metals like iron and aluminum. They have no gaseous cycle. The phosphates circulate in the lithosphere and hydrosphere. The phosphorous is also present in the aquatic areas. When it is present in the soil it is in the insoluble form and becomes soluble by the chemicals secreted by organisms and plants. It is absorbed by the plants which change into the organic form and they are added to the soils which increase their fertility. The soil from guano and ocean bed is a good source of phosphorous. The phosphorous move to animals from the plants. The decomposers act on the dead bodies of organisms and the animal excretions. They release the phosphorous which is again used by the plants. The phosphorous is lost through the process of leaching. It combines with the other metals and becomes insoluble. It settles down. The bones and teeth also contain the insoluble form of phosphates. They are an important segment of lithosphere and this type of phosphorous is released when the rocks are exposed to the weather conditions.