Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-numerical-Easy-Class 11
If the residual volume (RV) of a person's lungs is 1200 mL and the expiratory reserve volume (ERV) is 1000 mL, what is the functional residual capacity (FRC) of their lungs?
A
2200 mL
B
2000 mL
C
1200 mL
D
1000 mL
Correct Answer
Option A
Detailed Explanation
Functional Residual Capacity (FRC) is the volume of air remaining in the lungs after a normal expiration and is calculated as ERV + RV. Given ERV = 1000 mL and RV = 1200 mL, FRC = 1000 mL + 1200 mL = 2200 mL.
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