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Question 9265
NEET Biology · Hard

Breathing and Exchange of Gases: Residual volume MCQ

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Residual volumeHardQuestion 9265

Question

Residual volume is physiologically useful because it:

  1. A
    Prevents complete lung collapse
    Correct
  2. B
    Triggers ovulation
  3. C
    Increases blood sugar directly
  4. D
    Forms surfactant in bone marrow

Correct answer

Prevents complete lung collapse

Explanation

A certain amount of air always remains in lungs, helping keep alveoli open.

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