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  2. Urea cycle - Wikipedia

    en.wikipedia.org/wiki/Urea_cycle

    The urea cycle converts highly toxic ammonia to urea for excretion. [1] This cycle was the first metabolic cycle to be discovered by Hans Krebs and Kurt Henseleit in 1932, [2] [3] [4] five years before the discovery of the TCA cycle. The urea cycle was described in more detail later on by Ratner and Cohen.

  3. File:Urea cycle 1.png - Wikipedia

    en.wikipedia.org/wiki/File:Urea_cycle_1.png

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  4. File:Urea-Cycle scheme 2006-01.svg - Wikipedia

    en.wikipedia.org/wiki/File:Urea-Cycle_scheme...

    Diagram of biochemical urea cycle. Uses only capital letters, no textual description. 16:16, 5 February 2006: 800 × 600 (80 KB) Ayacop: Diagram of biochemical urea cycle. Uses only capital letters, no textual description. 16:09, 5 February 2006: 800 × 600 (80 KB) Ayacop: Diagram of biochemical urea cycle. Uses only capital letters, no textual ...

  5. Category:Urea cycle - Wikipedia

    en.wikipedia.org/wiki/Category:Urea_cycle

    Print/export Download as PDF; Printable version; In other projects ... Pages in category "Urea cycle" The following 21 pages are in this category, out of 21 total.

  6. File:Urea cycle.svg - Wikipedia

    en.wikipedia.org/wiki/File:Urea_cycle.svg

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  7. Ornithine - Wikipedia

    en.wikipedia.org/wiki/Ornithine

    L-Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen. Ornithine is recycled and, in a manner, is a catalyst. First, ammonia is converted into carbamoyl phosphate (H 2 NC(O)OPO 2−

  8. Metabolic waste - Wikipedia

    en.wikipedia.org/wiki/Metabolic_waste

    The excretion of urea is called ureotelism. Land animals, mainly amphibians and mammals, convert ammonia into urea, a process which occurs in the liver and kidney. These animals are called ureotelic. [3] Urea is a less toxic compound than ammonia; two nitrogen atoms are eliminated through it and less water is needed for its excretion.

  9. Argininosuccinic aciduria - Wikipedia

    en.wikipedia.org/wiki/Argininosuccinic_aciduria

    The urea cycle is a sequence of reactions in the cells of the liver. It processes excess nitrogen, generated when protein is used by the body, to make a compound called urea that is excreted by the kidneys. [citation needed] In argininosuccinic aciduria, the enzyme argininosuccinate lyase, involved in the conversion of arginino succinate to ...