Hemoglobin is produced in bone marrow by erythrocytes and is circulated with them until their destruction. It is then broken down in the spleen, and some of its components, such as iron, are recycled to the bone marrow.

Is hemoglobin produced in the liver?

Pernicious anemia and aplastic anemia both show large liver stores of hemoglobin-producing factors—a biological assay ratio of 200 to 240 per cent. Therapy in pernicious anemia reduces these liver stores as new red cells are formed.

What cell produces hemoglobin?

Red blood cells produce a protein called hemoglobin, which helps them carry out their primary function—transporting oxygen from the lungs to the body's tissues. Hemoglobin is the protein that makes it possible for red blood cells to carry oxygen. Each molecule of hemoglobin is made up of four protein chains.