NEET Zoology Gas Exchange MCQ Question
Which of the following statements about Functional Residual Capacity (FRC) and other respiratory volumes is correct?
FRC includes the expiratory reserve volume and residual volume.
Residual Volume is the maximum volume of air that can be inspired.
Expiratory Capacity is the sum of tidal volume and inspiratory reserve volume.
Inspiratory Capacity is the volume remaining in the lungs after a normal expiration.
Correct Answer
Detailed Explanation
Functional Residual Capacity (FRC) is defined as the volume of air remaining in the lungs after a normal expiration, which is the sum of expiratory reserve volume (ERV) and residual volume (RV). Option A correctly describes this relationship, while the other options misinterpret the definitions of the respective respiratory volumes.
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