Why are red blood cells non-nucleated?

Answer 1

when mammals began to evolve. Other vertebrates such as fish, reptiles and birds have red cells that contain nuclei that are inactive. Losing the nucleus enables the red blood cell to contain more oxygen-carrying hemoglobin, thus enabling more oxygen to be transported in the blood and boosting our metabolism.

Answer 2

Red Blood cells are non nucleated in order to store greater amount of haemoglobin.thus its carrying capacity will be greater in absence of nucleus.As a consequent of this red blood cells cannor replicate due to absence of DNA found in nucleus so they are present in large amount about 5 million RBCs are nucleated only in lamma (camel) .i don't know why.in vertebrates except mammals are nucleated.does the answer works if not email me.ktk_grt@Yahoo.com

Answer 3

so there is more room for oxygen to be defused into. The volume of the cell is very small in ratio to its surface area because of its biconcave shape. Therefore, the cell needs as much room as it can get.

Answer 4

Red blood cells contain a nucleus until just before they are released into the circulatory system. Their sole purpose is to transport oxygen throughout the body. The question of "why" leads to philosophical discussions; however, I can say that it is handy that they do not have a nucleus. If they did, they might get involved with other functions in the body, fighting disease, inflammation, etc., but without one the red cell functions without distraction to carry oxygen to all parts of the body.

Answer 5

It is advantageous for erythrocytes to lack nuclei because of the size of capillaries. The absence of the bulky nucleus allows the cells the fit and not become clogged.

Answer 6

An RBC has no nucleus , because the nucleus is extruded from the cell as it matures

Answer 7

So there is more space for Oxygen.