Iron is found within each haem component of haemoglobin and binds oxygen.
Iron is found within each haem component of haemoglobin and binds oxygen.
===Folic acid and vitamin B12===
===Folic acid and vitamin B12===
−
These elements are required for DNA synthesis and are important for the formation of new erythrocytes. Deficiencies leads to the formation of '''macrocytes'''.
+
These elements are required for DNA synthesis and are important for the formation of new erythrocytes. Deficiencies leads to the formation of '''macrocytes''', which are enlarged erythrocytes with a higher than normal MCV.