Exam2studyguide - Study Guide for Exam 2 (Chapter 18) CH...

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Study Guide for Exam 2 (Chapter 18) CH 339L Spring 2009 Chapter 18 – amino acid catabolism and the urea cycle Can you draw the structures of gln, glu, a-ketoglutarate, alanine, pyruvate, asp,  oxaloacetate and urea? How do amino acids from dietary protein get to the  bloodstream? By what pathways does excess nitrogen travel to liver mitochondria? Why is ammonia  metabolism important?  What is the role of the glucose-alanine cycle? What coenzyme is  required for aminotransferase (transamination) reactions, what is the mechanism  involved in these reactions?   How are amino groups introduced into the urea cycle?  What enzymes are involved and  what are the reactants/products/intermediates in the cycle? Where do the nitrogen and  carbon atoms of urea come from? How is ATP used in the urea cycle (review the  mechanisms for CPS I and argininosuccinate synthetase)? How are the energy 
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This note was uploaded on 02/16/2009 for the course CH 53355 taught by Professor Raymond during the Spring '09 term at University of Texas at Austin.

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