ANATOMY

Detailed explanation-1: -Hemoglobin (Heme + Globin) The protein hemoglobin is a molecule which is responsible for carrying almost all of the oxygen in the blood. It is composed of four subunits, each with a heme group plus a globin chain. The heme group is composed of a porphyrin ring which contains an iron (Fe) atom in its center.

Detailed explanation-2: -Hemoglobin is the iron-containing protein in red blood cells that reversibly binds to oxygen. It serves to transport oxygen from the lungs to bodily tissues and then deliver the oxygen to tissues that need it.

Detailed explanation-3: -hemoglobin, also spelled haemoglobin, iron-containing protein in the blood of many animals-in the red blood cells (erythrocytes) of vertebrates-that transports oxygen to the tissues. Hemoglobin forms an unstable reversible bond with oxygen.

Detailed explanation-4: -Oxygen binds reversibly to haem, so each haemoglobin molecule can carry up to four oxygen molecules. Haemoglobin is an allosteric protein; the binding of oxygen to one haem group increases the oxygen affinity within the remaining haem groups.

Detailed explanation-5: -Hemoglobin is the protein inside red blood cells. It carries oxygen. Red blood cells also remove carbon dioxide from your body, bringing it to the lungs for you to exhale.