Cytochrome is

Options

A. metallo flavoprotein
B. Fe containing porphyrin pigment
C. glycoprotein
D. lipid

Answer

B

Explanation

Cytocbrome is the respiratory pigment. It is composed of protein, iron and porphyrin ring. It functions as an enzyme in the respiratory, chain. Unlike haemoglobin the metal atom in the porphyrin ring must change it's valency for the molecule to function. Cytochromes are basically located in inner mitochondrial membranes and thylakoids of chloroplasts.