Question

A fully mature human RBC has:

• A. A nucleus
• B. No nucleus
• C. Mitochondria
• D. Golgi bodies

Answer 1

The correct option is B No nucleus

Mature human RBCs are roughly circular and non-nucleated. Absence of nucleus imparts RBCs a biconcave disc-like shape. The concave surface of RBC increases the surface area of the cell and facilitates the diffusion of oxygen and carbon dioxide in and out of the cell. They also lose most of the cell organelles like mitochondria, Golgi bodies, ribosomes, etc. during maturation to become efficient oxygen carriers.

So, the correct answer is option B.