Answer:
1)required for cellular respiration(Oxygen only)
2) net diffusion from alveoli to lung capillaries(Oxygen only)
3)sometimes transported as bicarbonate(Carbon Dioxide Only)
4)net diffusion from body tissues to blood(Carbon Dioxide Only)
5)net diffusion from lung capillaries to alveoli(Carbon Dioxide Only)
6)waste product of cellular respiration(Carbon Dioxide Only)
7)enters alveoli during inhalation(Both Oxygen and carbon dioxide)
8)transported by hemoglobin(Both Oxygen and carbon dioxide)
Explanation:
Gas exchange is a mechanism that helps the body to get the necessary Oxygen that is required for cellular respiration to take place
There is diffusion of oxygen to capillaries that are present in the lungs from the alveoli.
Gas exchange is a mechanism that is also responsible for the body to get rid of waste such as carbon dioxide,
A- organelles can have more than one role
