Solved UPSC CDS/OTA Question
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Q · Respiratory System medium · 45s
Which of the following increases during exercise?
TopicRespiratory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Exercise increases oxygen demand and CO₂ production, triggering higher tidal volume and respiratory rate, thereby raising minute ventilation (tidal volume × respiratory rate) to meet metabolic needs.
Final Answer: Option D - All of the above