Adult human RBCs 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
- AOnly (d)
- BOnly (a)
- C(a), (c) and (d)
- D(b) and (c)
Solution & Step-by-step Explanation
The loss of the nucleus (and other organelles like mitochondria) in mature human erythrocytes is an adaptation to maximize the amount of hemoglobin that can be packed into the cell. This ensures that all internal space is dedicated to oxygen transport.