NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Assertion: The lungs are situated in thoracic chamber which is anatomically an air-tight chamber.
Reason: Such an arrangement is essential to avoid any change in pulmonary volume.

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Correct option: C

If Assertion is true but Reason is false

Option C (If Assertion is true but Reason is false) is correct because the lungs are in an airtight chamber, but the purpose is to facilitate pressure changes for breathing, not to avoid them.

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