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STD 11 - 14. Breathing and exchange in gases — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 14. Breathing and exchange in gases4 Marks
MCQ
Inspiration occurs when intra-pulmonary pressure is
  • A
    Higher than atmospheric pressure
  • ✓
    Lower than atmospheric pressure
  • C
    Equal to atmospheric pressure
  • D
    Zero compared to atmospheric pressure
✓

Answer

Correct option: B.
Lower than atmospheric pressure
b
Air can flow to lungs, when the pressure within the lungs is less than the atomospheric pressure.

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