Iron is a component of the protein _____, which functions to _____.
A)myoglobin; protect against free radicals
B)transferrin; transport oxygen in the blood
C)hemosiderin; help blood clotting
D)hemoglobin; transport oxygen in the bloodstream
E)hemostatin; excrete excess iron

Question

Quizplus · Accepted Answer

Hemoglobin is the protein that transports oxygen in the bloodstream, and iron is a component of its structure. Choices A, B, and C are incorrect because myoglobin is responsible for oxygen storage in muscle tissue, transferrin is involved in iron transport, and hemosiderin is an iron storage protein, but none of them are directly involved in oxygen transport. Choice E is also incorrect because there is no known protein called hemostatin that excretes excess iron.

Iron Is a Component of the Protein _____, Which Functions