Question

Which element is most important in the erythrocyte's

function?
A. iron
B. magnesium
C. potassium
D. sodium
E. calcium

Answer 1

Iron

Step-by-step explanation:

The most abundant formed element in blood, erythrocytes are red, biconcave discs packed with an oxygen-carrying compound called hemoglobin. The hemoglobin molecule contains four globin proteins bound to a pigment molecule called heme, which contains an ion of iron.