Answered

What is the primary function of hemoglobin in red blood cells?
A. To fight off infections and pathogens
B. To transport oxygen from the lungs to tissues and carbon dioxide from tissues to the lungs
C. To regulate blood clotting and wound healing
D. To produce antibodies and immune responses



Answer :

Answer: B. To transport oxygen from the lungs to tissues and carbon dioxide from tissues to the lungs.

Explanation: Hemoglobin is a vital protein found in red blood cells. It is made up of amino acids and also requires iron as a cofactor. Hemoglobin binds to oxygen in red blood cells, and the cells circulate around the body through the blood vessels in order to deliver oxygen to cells that need it. Thus, choice B is the best answer as it accurately describes the function of hemoglobin.

None of the other answer choices are functions carried out by hemoglobin.