This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Ceruloplasmin contains ? 
Select and explain. 
A. Zn, B. Cu, C. Se, D. Fe
B: Cu
Answer: B: Cu 
Explanation: Ans. is 'b' i.e., Cu Copper containing enzymes are cytochrome oxidase, tyrosinase, lysyl oxidase, ferroxidase (ceruloplasmin), Ascorbic acid oxidase, and superoxide dismutase.