Arginase, an enzyme used in the final step of the urea cycle, contains this metal. A certain compound
 containing both potassium and this metal is known as Condy's crystal and in organic chemistry is used as
 an alternative to osmium tetroxide in a basic solution to convert an alkene to a 1,2-diol, or as an alternative
 to chromium-based complexes to react an alcohol to a carboxylic acid. The oxygen evolving complex in
 chloroplasts has a center with calcium and this metal. In the body, this metal is paired with iron in a class of
 superoxide dismutase found in the mitochondria. This metal is central to the testing of
Arginase, an enzyme used in the final step of the urea cycle, contains this metal. A certain compound
 containing both potassium and this metal is known as Condy's crystal and in organic chemistry is used as
 an alternative to osmium tetroxide in a basic solution to convert an alkene to a 1,2-diol, or as an alternative
 to chromium-based complexes to react an alcohol to a carboxylic acid. The oxygen evolving complex in
 chloroplasts has a center with calcium and this metal. In the body, this metal is paired with iron in a class of
 superoxide dismutase found in the mitochondria. This metal is central to the testing of alkenes in Baeyer's
 reagent, which involves the reduction of its +7 oxidation state to its +2 oxidation state. For 10 points, name
 this transition metal with chemical symbol Mn.
Arginase, an enzyme used in the final step of the urea cycle, contains this metal.
manganese