the urea cycle rids in the body of excess nitrogen by converting it to a non-toxic form that can be excreted in the urine.it utilize one nitrogen atom from carbonyl phosphate and one nitrogen atom from asparate.

1. 1.which enzyme releases urea a product? a) ornithine transcarbamoylase b) argininosuccinate synthetase c) argininosuccinase d) arginase
2. 2. which enzyme requires ATP a) ornithine transcarbamoylase b) argininosuccinate synthetase c) argininosuccinase d) arginase
3. 3- Which enzyme is located inside the mitochondrion? a) ornithine transcarbamoylase b) argininosuccinate synthetase c) argininosuccinase d) arginase
4. 4- which intermediates of the urea cycle must cross the mitochondrial membrane? a) argininsuccinate b) ornithine c) arginine d) citrulline

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