MICROANATOMY

Detailed explanation-1: -Hemoglobin is the protein inside red blood cells. It carries oxygen.

Detailed explanation-2: -Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.

Detailed explanation-3: -Hemoglobin is the oxygen-carrying protein that is found within all RBCs. It picks up oxygen where it is abundant (the lungs) and drops off oxygen where it is needed around the body. Hemoglobin is also the pigment that gives RBCs their red color.

Detailed explanation-4: -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.

Detailed explanation-5: -Oxygen binds reversibly to the ferrous iron atom in each heme group. The heme group that has become oxygen bound varies with the partial pressure of oxygen.