Question

Name the following

The mammalian blood cell lacking nucleus and mitochondria.

Answer 1

RBCs or erythrocytes

1. RBCs are human biconcave and nucleus-free cells; they are also recognized as erythrocytes.
2. The iron-rich protein called haemoglobin is found in RBCs, giving the blood to its red colour.
3. A mature erythrocyte lacks nucleus and mitochondria so as to make place for the accommodation of more hemoglobin and hence more oxygen molecules.
4. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion.