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 is inside heart?
- Why we should not breathe through mouth?
- How long it takes to recover from heart transplant?
- How are fats digested?
- How are atria and ventricles separated?
- How does large trees take up water?