Solved UPSC CDS/OTA Question
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Q · Respiratory System medium · 45s
Which cell type produces surfactant in alveoli?
TopicRespiratory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Type II alveolar cells synthesize and secrete surfactant, a phospholipid–protein complex that reduces surface tension and prevents alveolar collapse.
Final Answer: Option B - Type II pneumocytes