Which of the Following is True of Iron

Question

Which of the following is true of iron?
A) Is in the heme part of hemoglobin
B) Is necessary for erythropoiesis
C) Binds reversibly to oxygen
D) All of the above

Accepted Answer

Iron is located in the heme part of hemoglobin, which is responsible for carrying oxygen in the blood. Iron is necessary for erythropoiesis, the process by which red blood cells are formed. Iron binds reversibly to oxygen, allowing it to be transported throughout the body by hemoglobin. Therefore, all of the above statements are true.