Question

Adult human RBC's are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

(a) They do not need to reproduce.
(b) They are somatic cells.
(c) They do not metabolize.
(d) All their internal space is available for oxygen transport.

• A. (b) and (c)
• B. Only (d)
• C. Only (a)
• D. (a), (c) and (d)

Answer 1

The correct option is D (a), (c) and (d)

The circular mammalian erythrocyte is synthesized in the bone marrow. After synthesis, it undergoes a process called enucleation in which the nucleus is removed. The absence of a nucleus allows the red blood cells to contain more hemoglobin and hence all their internal space is available for oxygen transport in order to the body tissues. As they do not have any organelle, it does not show any metabolic activity and multiplication. Thus the correct answer is option D.