NEET Biology · Hard

Breathing and Exchange of Gases: Surface area MCQ

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

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Surface areaHardQuestion 9237

Question

A chief adaptation of alveoli for gas exchange is their:

  1. A
    Very large total surface area
    Correct
  2. B
    Thick multilayered walls
  3. C
    Dense cartilage plates
  4. D
    Complete absence of capillaries

Correct answer

Very large total surface area

Explanation

Millions of alveoli together provide enormous surface area for rapid diffusion.