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urea cycle

American  

noun

Biochemistry.
  1. a metabolic process by which ammonia derived from amino acids is converted into urea in the liver.


urea cycle British  

noun

  1. the sequence of metabolic reactions leading in vertebrates to the synthesis of urea

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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They suggested ammonia testing may have identified he was suffering from a urea cycle disorder, such as OTC, the court heard.

From BBC Jun. 27, 2023

The enzyme ornithine transcarbamylase catalyzes a key step in the urea cycle and its deficiency can lead to accumulation of toxic levels of ammonia in the body.

From Textbooks Jun. 9, 2022

The urea cycle utilizes five intermediate steps, catalyzed by five different enzymes, to convert ammonia to urea, as shown in Figure 32.13.

From Textbooks Jun. 9, 2022

Hence, the urea cycle is also referred to as the ornithine cycle.

From Textbooks Jun. 9, 2022

This transamination event creates a molecule that is necessary for the Krebs cycle and an ammonium ion that enters into the urea cycle to be eliminated.

From Textbooks Jun. 19, 2013

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