Phosphorus cycle - nutrient cycles, Biology

Phosphorus Cycle - Nutrient Cycles

Phosphorus is a very important nutrient because of its role in the form of phosphate, in reactions that store and release energy. The availability of phosphates often becomes a limiting factor in ecosystem productivity. The reservoir pool of phosphorus is in crystalline phosphate rock and the compartments in phosphorus cycling involve organisms, soil and shallow marine sediments. Tie natural form in which Phosphorus is available is inorganic phosphate. Through erosion and weathering of rocks, inorganic phosphate is made available to plants that absorb it from soil or in the case of aquatic plants from the water. Once taken up by the plant the phosphate may become part of ATP (adenosine triphosphate), nucleic acid or some other organic compound.

The phosphate may be returned to the soil or sediment when the plant dies and decomposes. Phosphorus may also be passed to the consumer or get incorporated into the cell body of the decomposers. In consumers the phosphorus may be incorporated into the bones and teeth and thus it remains bound for a long period of time. Some of it is excreted as waste and is immediately available to the decomposer. It may by a short loop be converted back to inorganic phosphate and be assimilated by the plants. On the other hand, it may be tightly bound to iron, calcium and aluminium as insoluble compounds and be washed off or lost in sediments.

Posted Date: 1/19/2013 2:26:23 AM | Location : United States







Related Discussions:- Phosphorus cycle - nutrient cycles, Assignment Help, Ask Question on Phosphorus cycle - nutrient cycles, Get Answer, Expert's Help, Phosphorus cycle - nutrient cycles Discussions

Write discussion on Phosphorus cycle - nutrient cycles
Your posts are moderated
Related Questions
1. Describe how the various molecular mechanisms act to regulate transcription of the genes within the lactose operon of E. coli . 2. Transcription of a eukaryotic protein-codi

Q. Are organic solvents like benzene and ether non-polar or polar substances? the ethers and Benzene are molecules without electrically charged portions and thus they are non-p

Homologous series A homologous series can be illustrated as a group of compounds in which the several members have similar structural features and identical chemical propertie

what are the phylum of kingdom protozoan

Q. Explain Coronary Anatomy? The main coronary trunks can be considered to lie in one of two orthogonal planes. The anterior descending and the posterior descending coronary ar

trematodes parasitic mode of feeding

Development of Endosperm In a fertilized embryo sac, the primary endosperm nucleus is generally observed below the zygote. It divides, and further divisions of its products gi

Q. What do you mean by Genera? Like species the genus represents a concept. Genera (Plural) are aggregates of closely related species. There is no size requirement for a genus.

Congenital Syphilis  A positive serological test for syphilis in a newborn without stigmata of syphilis may be due either to passive transfer of maternal antibodies or to prena

Rhinosporidiosis (Fungal-like agent) Rhinosporidiosis is a chronic, non-fatal, granulomatous mycotic infection of nasal mucosa caused by Rhinosporidium seberi. R. seberi is curren