Urea cycle enzymes and  urea excretion during the development and metamorphosis of Xenopus laevis.
D000641:Ammonia / Q000652:urine; D000818:Animals; D001001:Anura / Q000254:growth & development / Q000378:metabolism*; D001119:Arginase / Q000378:metabolism*; D008025:Ligases / Q000378:metabolism*; D008099:Liver / Q000201:enzymology*; D008675:Metamorphosis, Biological / Q000502:physiology; D009584:Nitrogen / Q000378:metabolism; D009954:Ornithine Carbamoyltransferase / Q000378:metabolism*; D010770:Phosphotransferases / Q000378:metabolism*; D014508:Urea / Q000652:urine*
D000641:Ammonia; D014508:Urea; D009954:Ornithine Carbamoyltransferase; D010770:Phosphotransferases; D001119:Arginase; D008025:Ligases; D009584:Nitrogen