NEET Biology ยท Hard

Body Fluids and Circulation: RBC Adaptation MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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RBC AdaptationHardQuestion 9701

Question

The biconcave shape of RBCs is most useful because it:

  1. A
    Increases surface area for gas exchange
    Correct
  2. B
    Allows RBCs to divide rapidly
  3. C
    Forms antibodies
  4. D
    Prevents haemoglobin formation

Correct answer

Increases surface area for gas exchange

Explanation

A biconcave disc improves diffusion efficiency and flexibility through capillaries.