Select all that apply. hemoglobin picks up oxygen has an attraction for carbon monoxide has an iron ion is found in erythrocytes

Hemoglobin is the protein molecule found in the red blood cells or erythrocytes that carries oxygen fom the lungs to the body’s tissues and returns carbon dioxide from the tissues back to the lungs. The protein molecule in hemoglobin contains iron containing compound that is vital in transporting oxygen and carbon dioxide in the blood. It has no attraction for carbon monoxide.