How is UREA tested?

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Multiple Choice

How is UREA tested?

Testing urea by tracking the ammonium produced from urease-catalyzed hydrolysis is the right approach. Urease cleaves urea with water to give carbon dioxide and ammonia; the ammonia becomes ammonium in solution, and the amount of NH4+ (or the associated pH change) directly indicates how active the urease is. In practice, assays detect NH4+ colorimetrically or via a pH indicator, providing a direct readout of enzyme activity rather than just measuring how much urea remains or oxidizing the substrate. This focused measurement of the reaction’s product makes ammonium quantification the best way to test for urease activity.

Testing urea by tracking the ammonium produced from urease-catalyzed hydrolysis is the right approach. Urease cleaves urea with water to give carbon dioxide and ammonia; the ammonia becomes ammonium in solution, and the amount of NH4+ (or the associated pH change) directly indicates how active the urease is. In practice, assays detect NH4+ colorimetrically or via a pH indicator, providing a direct readout of enzyme activity rather than just measuring how much urea remains or oxidizing the substrate. This focused measurement of the reaction’s product makes ammonium quantification the best way to test for urease activity.

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