Iron is bound to the center of hemoglobin, which transports oxygen. Depending on the meaning of element in the question, it could be Iron(most likely) or hemoglobin.
ADDED: It is the iron: 4 iron molecules held within the haemoglobin molecule's hydrocarbon lattice. The oxygen binds physically to the Fe without reacting chemically.
The element iron is needed for the hemoglobin to carry oxygen.
That would be Iron found in the hemoglobin protein of your red blood cells.
Iron is the critical element in the formation of hemoglobin. Hemoglobin carries oxygen in the red blood cell.
Iron
calcium
red blood cells and white blood cells and platelets
Red marrow produces red blood cells (RBCs), white blood cells (WBCs) and cell fragments called platelets. RBCs carry oxygen through out the body, WBCs fight off infections by bacteria and viruses, other "invaders" and platelets are necessary for blood clotting.
Red blood cells because that is what carries oxygen throughout the body
Red Blood Cells
The four major components in blood are: -Plasma -Platelets -Red Blood Cells -White Blood Cells
Haemoglobin is important to carry oxygen in red blood cells to different organs or tissue of organism
yes
Fibrinogen is not a formed element of blood. It's a chemical component in the plasma. The formed elements of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Iron.
Hemoglobin is the oxygen-carrying component in red blood cells. Hemoglobin is a protein that has an iron molecule. Aside from red blood cells, there are white blood cells, which also are important components of the blood.
Hemoglobin in the red blood cells or erythrocrytes carry oxygen throughout the body.
Erythrocytes, or red blood cells, are the most abundant of the formed elements of the blood. The other formed elements are leukocytes (white blood cells) and thrombocytes (platelets).erythrocytes (red blood cells)Erythrocytes (red blood cells or RBCs)platelets, for about 250,000-500,000 per mm3 of blood.
red blood cells are produced in the Marrow.
Red blood cells carry oxygen to the blood and contain hemoglobin, which is high in iron, a very important mineral to maintain healthy blood
red blood cells and white blood cells and platelets
the cells are inportant because if you get cut the cells ( red blood cells and white blood cells) help heal the wound.
The formed elements of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Thrombocytes are the formed element that is actually a cell fragment. Platelets are important in blood clotting.