Red blood cells contain haemoglobin, which transports oxygen from the lungs to all parts of the body. It has no nucleus. It has more space to carry more haemoglobin and carry more oxygen. It has a circular biconcave shape. read more
Red blood cells contain haemoglobin, which transports oxygen from the lungs to all parts of the body. It has no nucleus. It has more space to carry more haemoglobin and carry more oxygen. read more
There are a number of ways red blood cells are adapted to their functions. Red blood cells are discs that have a concave hollow on each side. They are described as biconcave discs. This shape gives them a greater surface area than a flat disc and it also allows all the hemoglobin molecules to be close to the surface of the cell. Unlike most cells, red blood cells do not have a nucleus. read more