The red blood cells, scientifically known as Erythrocytes, makes up 40 percent of the blood’s volume. Erythrocytes contain an iron filled protein called hemoglobin, which gives the blood its red color. Hemoglobin allows the Erythrocytes to carry oxygen from the lungs and bring it to all of body tissues via blood flow in the circulatory system. They also bring carbon dioxide away from the tissues back into the lungs. The hemoglobin is located in the cytoplasm of the Erythrocytes. My 3D model depicts a mature red blood cell of a human. If you look at the model, you can notice that it doesn’t have a nucleus. The reason that this is because the Erythrocytes need the maximum amount of space for the
