Cytochrome is

A. Metalloflavo protein

B. Fe-containing porphyrin pigment

C. Lipid

D. Glycoprotein

Answer: Option B

Solution(By Examveda Team)

Cytochrome is a Fe-containing porphyrin pigment.
Cytochromes are redox-active proteins containing a heme, with a central Fe atom at its core, as a cofactor. They are involved in the electron transport chain and redox catalysis.
Cytochrome function is linked to the reversible redox change from ferrous (Fe(II)) to the ferric (Fe(III)) oxidation state of the iron found in the heme core.