explain is oxygen and carbon dioxide are acidic or basic. explain how breathing can alter acidic/basic concentrations in blood

Describe what happens with PCO2 levels and pH during normal breathing.

Asthma is a very common disease. It is characterized by widespread narrowing of the bronchioles and formation of mucus plugs, producing symptoms of wheezing, shortness of breath, and coughing, and is caused by the release of factors during an allergic response. Explain why the narrowing of bronchioles, rather than that of the larger bronchi, is the source of the airflow restriction, and why inhaling dilating agents can bring relief during an asthma attack.

Explain the flow of ions during the processes of internal and external respiration