Question

Question on gaseous exchange help plzzzz
1)Describe the process of gaseous exchange in alveolus.
2)suggest differences in the structure of the lung that may account for the greater oxygen uptake.
3)Describe how cigarette smoke is responsible for the development of lung cancer.
4)Describe the role of elastic fibres in the wall of alveolus.
5)Explain how alveoli are adapted for gas exchange.
Plzzzz help!!!!!

Answer 1

http://www.webmd.com/lung/picture-of-the-lungs