Question

in the breakdown of hemoglobin, the iron ____________. multiple choice is transported by transferrin to the liver is transported by transferrin to the spleen is transported by transferrin to the red bone marrow is transported by transferrin to the liver, spleen, and bone marrow

Explanation:

When hemoglobin breaks down, the iron is bound to transferrin. Transferrin then transports the iron to the liver (for storage as ferritin or hemosiderin), spleen (for storage or reuse in case of future need for erythropoiesis - as the spleen can store iron and also has macrophages that can handle iron - related processes in a way that can contribute to iron metabolism in the body), and red bone marrow (where it is used in the synthesis of new hemoglobin for new red blood cells).

Answer:

is transported by transferrin to the liver, spleen, and bone marrow