In humans, mature red blood cells are flexible and oval biconcave disks. They lack a cell nucleus and most organelles, in order to accommodate maximum space for hemoglobin; they can be viewed as sacks of hemoglobin, with a plasma membrane as the sack.
Similarly, what is the primary function of the red blood cells?
The primary function of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.
What are red blood cells and what do they do?
Red Blood Cells (also called erythrocytes or RBCs) The red blood cell survives on average only 120 days. Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled.
What are two functions of red blood cells?
Red blood cells (RBCs), also known as erythrocytes, have two main functions: To pick up oxygen from the lungs and deliver it to tissues elsewhere. To pick up carbon dioxide from other tissues and unload it in the lungs.