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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases2 Marks
Question
Distinguish between:
IRV and ERV
✓

Answer

 
Inspiratory reserve volume
(IRV)
 
Expiratory reserve volume (ERV)
1.

It is the maximum volume of air that can be inhaled after a normal inspiration.

 1.

It is the maximum volume of air that can be exhaled after a normal expiration.
2. It is about 2500 – 3500 mL in the human lungs. 2. It is about 1000 – 1100 mL in the human lungs.

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