Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-numerical-Hard-Class 11
If a person has a Residual Volume (RV) of 1200 mL and an Expiratory Reserve Volume (ERV) of 1000 mL, what is their Functional Residual Capacity (FRC)?
A
2200 mL
B
1000 mL
C
200 mL
D
1200 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, calculated as the sum of Residual Volume (RV) and Expiratory Reserve Volume (ERV). Given RV = 1200 mL and ERV = 1000 mL, FRC = RV + ERV = 1200 mL + 1000 mL = 2200 mL.
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