Home Biology Breathing and Exchange of Gases Respiratory Organs Inspiration occurs when there is a negative …
Biology Breathing and Exchange of Gases Respiratory Organs Single Correct MCQ
Published on: August 23, 2026

Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. 'This negative pressure is achieved when - ·

A

Intrapulmonary pressure is less than the atmospheric pressure

B

Intra pulmonary pressure is greater than the atmospheric pressure

C

Intrapulmonary pressure is equal to the atmospheric pressure

D

lntrapleural pressure becomes more than the intraalveolar pressure

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The correct answer is:
A

(a)

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