What is hemoglobin: Hemoglobin is a globular

Hemoglobin is a globular heme protein in vertebrate red blood cells and in the plasma of many invertebrates that carries oxygen and carbon dioxide. Helpful. Haemoglobin can be defined as a pigment-protein found in the erythrocyte and it functions as a “Metalloprotein” as it contains four iron metal ions or haem (Iron-containing porphyrin) group and globular protein. This post describes the definition, structure, function, measurement methods, facts and effects of Hb. Hemoglobin, iron-containing protein in the blood of many animals that transports oxygen to the tissues. Hemoglobin forms an unstable reversible bond with oxygen. In the oxygenated state, it is called oxyhemoglobin and is bright red; in the reduced state, it is purplish blue. Hemoglobin is a protein in red blood cells that carries oxygen and carbon dioxide in the blood. Learn about hemoglobin tests, normal and abnormal levels, causes and symptoms of anemia, and how to increase hemoglobin levels.