Iron is a component of which of the following proteins, responsible for transport of oxygen in the bloodstream?
A) myoglobin
B) transferrin
C) hemosiderin
D) hepcidin
E) hemoglobin

Question

Quizplus · Accepted Answer

Hemoglobin is the protein responsible for transporting oxygen in the bloodstream, and iron is a component of the heme group within hemoglobin. Myoglobin is also a protein that binds to oxygen, but it is found in muscle tissue rather than in the bloodstream. Transferrin is a protein involved in iron transport, but not in oxygen transport. Hemosiderin is a storage form of iron, and hepcidin is a hormone that regulates iron metabolism, but neither are directly involved in oxygen transport.

Iron Is a Component of Which of the Following Proteins