A surfactant is a secretory product that is composed of:
Correct answer: B. Protein and lipid
- A. Protein and disaccharide
- B. Protein and lipid
- C. Lipid and carbohydrate
- D. Carbohydrate and vitamins
Explanation
Surfactant is an agent that decreases the surface tension between two media. The surface tension between gaseous-aqueous interphase in the lungs is decreased by the presence of a thin layer of fluid known as pulmonary surfactant. It is composed of lipids and proteins.
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