RBC AdaptationHardQuestion 9701
Question
The biconcave shape of RBCs is most useful because it:
- AIncreases surface area for gas exchangeCorrect
- BAllows RBCs to divide rapidly
- CForms antibodies
- DPrevents haemoglobin formation
Correct answer
Increases surface area for gas exchange
Explanation
A biconcave disc improves diffusion efficiency and flexibility through capillaries.