Answer:
Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by diffusion.
Explanation:
- Diffusion is a process in which transportation is motivated by a density gradient.
- Gas molecules flow from a zone of high density to a zone of low density.
- Blood that is below in oxygen absorption and high in carbon dioxide concentration experiences gas exchange with air in the lungs.
Thus we can say diffusion causes the exchange of oxygen and carbon dioxide in lungs.
2) Answer:
Air moves out of the lungs when the pressure inside the lungs is greater than the pressure in the atmosphere.
Explanation:
- As the inspiratory tissues loosen, the amount of the thoracic cage drops by elastic recoil of the costal cartilages, and the lungs recoil.
- The intra-alveolar force thus grows above the atmospheric stress, and air flows out of the lungs.
3) Answer:
Blood pH adjustment is not an event necessary to supply the body with [tex]O_{2}[/tex] and dispose of [tex]CO_{2}[/tex]
Explanation:
- The PH of the blood is to maintain the acid base function in blood.
- It does not do with supply the body with [tex]O_{2}[/tex] and dispose of [tex]CO_{2}[/tex].
To learn more about blood, refer:
- https://brainly.com/question/18196315
- https://brainly.com/question/19618896
