 
			 
			MCQOPTIONS
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				| 1. | Manganese is a key component of all of the following enzymes except | 
| A. | arginase | 
| B. | pyruvate carboxylase | 
| C. | ceruloplasmin | 
| D. | Mn-superoxide dismutase | 
| Answer» D. Mn-superoxide dismutase | |