Body Fluids and Circulation Question 2
2. Adult human $RBCs$ are enucleated. Which of the following statement(s) is/are most appropriate explanation for this feature ?
[2017]
(1) They do not need to reproduce
(2) They are somatic cells
(3) They do not metabolize
(4) All their internal space is available for oxygen transport
(a) only (1).
(b) (1), (3) and (4).
(c) (2) and (3).
(d) only (4).
Show Answer
Answer : d
Hints & Solutions
(d) In human RBCs, nucleus get degenerates during maturation and it provide more space for oxygen carrying pigment (haemoglobin). It lacks many cell organelles including mitochondria so respires anaerobically.
