NEET Biology · Medium

Breathing and Exchange of Gases: Exchange surface MCQ

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

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Exchange surfaceMediumQuestion 9283

Question

The moist nature of alveolar lining is important mainly because it:

  1. A
    Allows gases to dissolve before diffusion
    Correct
  2. B
    Prevents haemoglobin formation
  3. C
    Blocks all CO2 movement
  4. D
    Converts oxygen into plasma proteins

Correct answer

Allows gases to dissolve before diffusion

Explanation

Respiratory gases dissolve in the moist lining before diffusing across membranes.