Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
How does tar damage lungs?
Answer: Tar sticks on the alveoli walls making them hard and rough. When a smoker coughs, these walls breakdown reducing the surface area for the absorption of oxygen. Moreover, tar is also responsible for lung cancer.
Learn also:
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- Which cell is found in highest amount in blood?
- What is ovule?
- After chewing where does food go?
- What is aerobic respiration?