A surfactant plays its role by:
Correct answer: C. Decreasing surface tension
- A. No effect on surface tension
- B. Increasing surface tension
- C. Decreasing surface tension
- D. None of these
Explanation
Pulmonary surfactant is essential for life as it lines the alveoli to lower surface tension, thereby preventing atelectasis during breathing. Surfactant is enriched with a relatively unique phospholipid, termed dipalmitoylphosphatidylcholine, and four surfactant-associated proteins, SP-A, SP-B, SP-C, and SP-D.
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