Biochemistry Miscellaneous (Bio-Chemistry) 68bd189a Which one of the following are metalloporphyrins A Cytochrome B Hemoglobin C Bilirubins D Catalase High-Yield Explanation (A) Cytochrome # Metalloporphyrins: Heme is the most important part of the metalloporphyrins Heme Chlorophyll Cytochromes Catalase Tryptophan pyrrolase