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.
- What happens to chest when we inhale?
- What happens in small intestine?
- How is flu treated?
- What is absorption?
- What is alveolus?
- What could be an example of diffusion?