MCAT Biology Question 78: Answer and Explanation
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Question: 78
3. Total lung capacity is equal to the vital capacity plus the:
- A. tidal volume.
- B. expiratory reserve volume.
- C. residual volume.
- D. inspiratory reserve volume.
Correct Answer: C
Explanation:
Total lung capacity is equal to the vital capacity (the maximum volume of air that can be forcibly inhaled and exhaled from the lungs) plus the residual volume (the air that always remains in the lungs, preventing the alveoli from collapsing).