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  • oxygen
  • From a physiological and biochemical perspective, the cell membrane consists of a "phospholipid bilayer"-two rows of molecules composed primarily of fats (lipids) and phosphorus (in a special form called "phosphate" that involves a combination of phosphorus with oxygen and hydrogen). (whfoods.org)
  • In fact, the main crystalline structure in bone, called hydroxyapatite, consists of phosphorus, calcium, oxygen, and hydrogen, and calcium and phosphorus are so important in formation of hydroxyapatite that it is often referred to as a "calcium phosphate" molecule. (whfoods.org)
  • molecules
  • After a number of successful attempts, researchers working with Derek P. Gates at the University of British Columbia (Vancouver, Canada) wanted to apply this concept to molecules that contain both P=C and C=C double bonds: phosphorus analogs of the building block of rubber, isoprene (2-methylbuta-1,3-diene) and its close relative, 1,3-butadiene. (eurekalert.org)
  • This P 4 tetrahedron is also present in liquid and gaseous phosphorus up to the temperature of 800 °C (1,470 °F) when it starts decomposing to P 2 molecules. (wikipedia.org)
  • Phosphorus is found in many organic molecules and so phosphorus-32 has many applications in medicine, biochemistry and molecular biology where it can be used to trace phosphorylated molecules, e.g. in elucidating metabolic pathways, and radioactively label DNA. (wikipedia.org)
  • Phosphorus is abundant in biological systems and, as a radioactive isotope is almost chemically identical with stable isotopes of the same element, phosphorus-32 can be used to label biological molecules. (wikipedia.org)
  • The sequence of chemical changes which happen to the substrate can then be traced by detecting which molecules contain the phosphorus-32 at multiple time points following the initial treatment. (wikipedia.org)
  • Phosphorus forms parts of important life-sustaining molecules that are very common in the biosphere. (wikipedia.org)
  • pentabromide
  • Phosphorus pentabromide is a reactive, yellow solid of formula PBr5, which has the structure PBr4+ Br− in the solid state but in the vapor phase is completely dissociated to PBr3 and Br2. (wikipedia.org)
  • Phosphorus pentabromide is a hypervalent molecule with a 3-center 4-electron bond. (wikipedia.org)
  • phosphoric acid
  • In recent years, a good bit of controversy has unfolded about health risks involved with excessive dietary intake of phosphorus through increased consumption of soft drinks containing phosphoric acid and processed foods containing phosphate stabilizers, emulsifiers, anticaking agents, and acidity regulators. (whfoods.org)
  • reaction
  • An excess of phosphorus is used in order to prevent formation of PBr5: 2 P + 3 Br2 → 2 PBr3 Because the reaction is highly exothermic, it is often conducted in the presence of a diluent such as PBr3. (wikipedia.org)
  • Magnesium
  • 4. Workman ML. Magnesium and phosphorus: the neglected electrolytes. (empowher.com)
  • Phosphorus may be a lesser known mineral than the other minerals with which it is commonly grouped (like calcium or magnesium), but it is not one bit less important. (whfoods.org)
  • PBr3
  • PBr3 + 3 ROH → 3 RBr + HP(O)(OH)2 The mechanism (shown for a primary alcohol) involves formation of a phosphorus ester (to form a good leaving group), followed by an SN2 substitution. (wikipedia.org)
  • biosphere
  • Of all the elements recycled in the biosphere , phosphorus is the scarcest and therefore the one most limiting in any given ecological system. (britannica.com)
  • mineral
  • The mineral phosphorus is an essential part of the diet. (empowher.com)
  • Phosphorus is a mineral that helps in the formation of bones and teeth. (kidshealth.org)
  • Not only do 75 of our foods rank as excellent, very good, or good sources of this mineral, but you can also find ranked sources of phosphorus in every single one of our food groups. (whfoods.org)
  • So as you can see from its role in the cell's outer membrane, internal fluid, and genetic components, phosphorus is an essential part of the cell's design and it is a mineral that helps enable the cell's basic function. (whfoods.org)
  • The primary mineral with significant phosphorus content, apatite [Ca5(PO4)3OH] undergoes carbonation. (wikipedia.org)
  • soils
  • Because of the steady diversion of phosphorus into the oceans, the element must be added (in fertilizers) to soils to maintain fertility and agricultural productivity. (britannica.com)
  • Low concentration of phosphorus in soils reduces plant growth, and slows soil microbial growth - as shown in studies of soil microbial biomass. (wikipedia.org)
  • cell membranes
  • Interestingly, despite its central role in cell function, most of the phosphorus in our body is not found in cell membranes, cell fluids, or genetic materials in the cell nucleus, but in our bones. (whfoods.org)
  • finite
  • Phosphorus is a finite (limited) resource that is widespread in the Earth's crust and in living organisms but is relatively scarce in concentrated forms, which are not evenly distributed across the Earth. (wikipedia.org)
  • citation needed
  • Its flash point is about 100 °C.[citation needed] Exposure to "strike anywhere" matches containing phosphorus sesquisulfide can cause contact dermatitis, usually in the pocket area but also on the face. (wikipedia.org)
  • citation needed] The availability of phosphorus in an ecosystem is restricted by the rate of release of this element during weathering. (wikipedia.org)
  • toxic
  • At the same time, inefficient use of phosphorus from mine to field to fork is polluting our rivers and oceans, causing toxic algal blooms. (phosphorusfutures.net)
  • In the laboratory it may be more convenient to use the less toxic red phosphorus. (wikipedia.org)
  • In this situation it is the longterm toxic effects of beta radiation from phosphorus-32 accumulating in the cancerous cells which has the therapeutic effect.The Phosphorus-32 is widely used radioisotope for cancer detection and treatment, especially in eyes and skin cancer. (wikipedia.org)
  • sufficiently
  • The beta radiation emitted by the phosphorus-32 is sufficiently penetrating to be detected outside the organism or tissue which is being analysed Many radioisotopes are used as tracers in nuclear medicine, including iodine-131, phosphorus-32, and technetium-99m. (wikipedia.org)