Biology
Why are RBCs efficient in their functions though they lack nucleus and mitochondria?
Answer
RBCs are efficient in their functions though they lack nucleus and mitochondria because:
- Loss of nucleus makes the red cells biconcave, thus increasing their surface area to absorb more oxygen.
- Loss of mitochondria means that they cannot use the absorbed oxygen themselves. Thus, all the oxygen absorbed from the lungs is transported and delivered to the tissues unconsumed.
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