AP Biology:  Respiration Questions

Read p.886-897 and answer the following questions.

1.  Write a concept generalization with the following terms:  gas exchange, respiratory medium, respiratory surface, and ventilation.

2.  Compare and contrast positive pressure breathing and negative pressure breathing.  Include in your discussion the role of the diaphragm.  

3.  Sketch a graph to show the change in lung volume during 1 inhalation and 1 exhalation.  The x-axis should labeled as "time(s)" and the y-axis should be labeled as "lung volume(L)."    Label:  tidal volume, residual volume, and vital capacity.  

4.  Explain the role of [CO2] in the regulation of breathing.  

5.  What is partial pressure and how is it calculated?

6.  Write a concept generalization with the following terms:  hemoglobin, dissociation, cooperativity, conformation change, pH, and Bohr shift.  

7.  Summarize 42.29 in your own words.