What chemical reduces surface tension in the alveoli?
A. Surfactant
B. Bicarbonate
C. Exudate
D. Effusion

Surfactant is the chemical that reduces surface tension in the alveoli, allowing for easier lung expansion and efficient gas exchange. It is composed of lipids and proteins and is essential for respiratory function. Without sufficient surfactant, alveoli can collapse, leading to breathing difficulties. ;

Answered by GinnyAnswer | 2025-07-07

Surfactant is the chemical that reduces surface tension in the alveoli, allowing for better lung expansion and gas exchange. It is crucial for preventing alveolar collapse and making breathing easier. Surfactant is composed of lipids and proteins and is secreted by specialized cells in the lungs.
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Answered by Anonymous | 2025-07-09