An Important Mineral Ion Found in the Cytochrome Pigments of Cellular

Question

An important mineral ion found in the cytochrome pigments of cellular respiration is ______.
A) iron
B) magnesium
C) potassium
D) zinc
E) calcium

Accepted Answer

Iron is a crucial component of the heme group in cytochromes, which play a key role in the electron transport chain of cellular respiration.