how can phosphorous help the human body?
thanks for this course
what is phosphorus cycle?
Most phosphorus occurs in crustal rocks or in ocean sediments.
OK MODULE 1 FROM ITALY
Why does the increased availability of phosphate and the subsequent possibility of an overgrowth of algae deplete the oxygen in a given environment?
phosphorus is essentail component of all living thing and play a major role to maintain biogeochemical process/there high avaliablity can cause environmental pollution by eutrophication which is danger for aquatic animals
what is phosphorus cycle
I completely forgot that phosphorus was a vital nutrient for life. "The carrier of energy for all life forms."
It is frightening how humans through the use of technology have been able to manipulate resources. What are the consequences of extracting minerals at a human pace over natures natural processes? Will the planet run out of phosphorus and life die out? If it is finite and ends up in the water bodies as pollutants, seeps into groundwater, etc. In the long run, how does this effect ecosystems?
Phosphorus in earth systems is usually in the form of phosphate (PO4 3- ). In living organisms it is an essential constituent of cell membranes, nucleic acids and ATP (the carrier of energy for all life forms). It is also a component of bone and teeth in humans and animals. The phosphorus cycle is relatively simple compared to the other cycles of matter as fewer reservoirs and processes are involved. Phosphorus is not a nominal constituent of the atmosphere, existing there only in dust particles.
Most phosphorus occurs in crustal rocks or in ocean sediments. When phosphate-bearing rock is weathered, the phosphate is dissolved and ends up in rivers, lakes and soils. Plants take up phosphate from the soil, while animals ingest phosphorus by eating plants or plant-eating animals. Phosphate is returned to the soil via the decomposition of animal waste or plant and animal materials. This cycle repeats itself again and again.
Some phosphorus is washed to the oceans where it eventually finds its way into the ocean floor sediments. The sediments become buried and form phosphate-bearing sedimentary rocks. When this rock is uplifted, exposed and weathered, the phosphate is again released for use by living organisms.
The movement of phosphorus from rock to living organisms is normally a very slow process, but some human activities speed up the process. Phosphate-bearing rock is often mined for use in the manufacture of fertilizers and detergents. This commercial production greatly accelerates the phosphorous cycle.
In addition, runoff from agricultural land and the release of sewage into water systems can cause a local overload of phosphate. The increased availability of phosphate can cause overgrowth of algae. This reduces the oxygen level, causing eutrophication and the destruction of other aquatic species.
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