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Uric acid


Uric acid is a potent antioxidant and thus can protect cells from damage by reactive oxygen species (ROS). [Link]
The concentration of uric acid is 100-times greater in the cytosol than in the extracellular fluid.
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uric acid
[Gk. ouron, urine]
An insoluble precipitate of nitrogenous waste excreted by land snails, insects, birds, and some reptiles.
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uric acid the main nitrogenous excretory product in birds, reptiles, some invertebrates, and insects
uricotelic excretion Having uric acid as the chief excretory product of nitrogen metabolism; occurs in reptiles and birds.
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uric acid: a component of urine that results from nucleic acid breakdown.
urinary bladder: the site where waste products are shipped from the kidney for storage or for release.
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Dec 4, 1863 Barbituric acid is discovered by German researcher Adolf von Baeyer. His discovery came on the day of St. Barbara, so he chose the name "barbiturate" as a combination of St. Barbara and "urea".
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Purines from food (or from tissue turnover) are metabolized by several enzymes, including xanthine oxidase, into uric acid.
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In heap leaching, a dilute sulfuric acid solution is percolated through crushed low-grade ore that has been stacked on an impervious pad.
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acid rain The precipitation of sulfuric acid and other acids as rain. The acids form when sulfur dioxide and nitrogen oxides released during the combustion of fossil fuels combine with water and oxygen in the atmosphere.
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A group of drugs derived from barbituric acid that is used to sedate, to control convulsions, or to induce sleep. Blood and urine tests can determine toxic levels of these compounds. Barbiturates may be habit forming.
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purine base; basic compounds related in structure to uric acid; examples include adenine and guanine, which are bases and constituents of nucleic acids
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Karl Scheele and many later researchers, including Humphry Davy, Gay-Lussac, Antoine Lavoisier, and Louis Thenard all would experiment with hydrofluoric acid, easily obtained by treating calcium fluoride (fluorspar) with concentrated sulfuric acid.
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amino groups and carbon dioxide; occurs in mitochondrial and cytoplasmic compartments of the liver. ureotelic Organisms which excrete excess nitrogen in the form of urea. uricotelic Organisms which excrete excess nitrogen in the form of uric acid ...
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