Electron transport system high-protein concentrations

Copper is a mineral that is required for many essential enz)rmes. The respiratory electron transport chain contains an enzyme, q/tochrome oxidase, that contains both heme groups and copper ions. Copper is therefore required in the diet for the function of this essential enzyme. Copper is also required by some of the enzymes that are responsible for the synthesis of connective tissue proteins. Seafood, vegetables, nuts, and meats such as liver are excellent sources of copper ions. The ESADDI for adults is 1.5-3.0 mg. Copper ions in high concentrations are toxic. In fact, mental retardation and death in early adolescence result from an inability to remove excess copper ions from the body. As everywhere in life, the balance of the system is critical to its function. 

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