You are waiting backstage for your cue to come onstage when you notice that you are breathing rapidly and beginning to feel light-headed. As you try to control your anxiety and slow your breathing, you think about what you learned in your biology class this week and realize that your hyperventilation is changing your blood pH. Explain. Reminder: Blood pH is maintained by carbonate buffer, which is related to the amount of CO2 you breathe in or out. One way that your body controls the amount of carbonate in your blood is to change the rate of breathing. When you breathe out, you remove CO2 and lower the amount of arbonic acid in the blood. As a result, the amount of H+ ions in the blood decreases. Take your time on this one; relating pH to changes in H+ concentration can be confusing.
Rapid breathing increases the pH of my blood, making it more basic.