MCQOPTIONS
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				| 1. | The first step in the catabolism of most L-amino acids once they have reached the liver is promoted by | 
| A. | Amino transferases | 
| B. | Glutaminase | 
| C. | Glutamine synthase | 
| D. | Glutamate dehydrogenase | 
| Answer» B. Glutaminase | |