Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.)
A: The heme group is converted into biliverdin.
B: Bilirubin is stored in the liver.
C: The iron ions in hemoglobin are removed.
D: The iron ions are stored in the liver.
E: The iron ions are stored in the red bone marrow.
F: Membrane proteins and globin proteins are broken down and reused.
G: The erythrocyte contents,excluding the globins,are excreted via the digestive tract unchanged.

Question

Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.) 
A: The heme group is converted into biliverdin.
B: Bilirubin is stored in the liver.
C: The iron ions in hemoglobin are removed.
D: The iron ions are stored in the liver.
E: The iron ions are stored in the red bone marrow.
F: Membrane proteins and globin proteins are broken down and reused.
G: The erythrocyte contents,excluding the globins,are excreted via the digestive tract unchanged.

Quizplus · Accepted Answer

During the recycling of aged or damaged erythrocytes, the iron ions in hemoglobin are first removed (C) and stored in the liver (D). The remaining heme group is converted into biliverdin (A) and then bilirubin is formed from it, which is then stored in the liver (B). Membrane proteins and globin proteins are broken down and reused (F). The erythrocyte contents, excluding the globins, are not excreted via the digestive tract unchanged (G). Iron ions are not stored in the red bone marrow (E). Therefore, the best choice is B, which includes all the correct events that occur during the recycling of aged or damaged erythrocytes.

Which Events Occur During the Recycling of Aged or Damaged