Question

Name the organelles absent in mature RBCs.

Answer 1

Red blood cells

1. Red blood cells (RBC) or red blood corpuscles or erythrocytes are the most common type of blood cell that delivers oxygen to the vertebrate’s body tissues through the blood.
2. Organelles absent in mature RBCs are nucleus, endoplasmic reticulum and mitochondria.
3. Absence of nucleus makes RBCs biconcave and increases its capacity and surface area for absorption of respiratory gases.
4. Absence of endoplasmic reticulum makes the cell more flexible so that they can pass easily through narrow capillaries.
5. Absence of mitochondria ensures that the oxygen that has to be transported to the tissues is not utilized by the RBCs themselves.