Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-numerical-Easy-Class 11
If the residual volume (RV) averages 1200 mL and the expiratory reserve volume (ERV) is 1000 mL, what is the functional residual capacity (FRC)?
A
2200 mL
B
1200 mL
C
1000 mL
D
3200 mL
Correct Answer
Option A
Detailed Explanation
Functional Residual Capacity (FRC) is the volume of air that remains in the lungs after a normal expiration and is calculated as the sum of ERV and RV. Hence, FRC = ERV + RV = 1000 mL + 1200 mL = 2200 mL.
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