Chapter 22 Questions - Gas Exchange

22.1  Describe the three main phases of gas exchange in a human.

22.2  Describe the properties of respiratory surfaces.  Describe 4 types of respiratory surfaces and the kinds of animals that use them. 

22.3  You need to understand counter-current exchange in fish.  How does the amount of oxygen differ in cold and warm freshwater and cold and warm saltwater.

22.4  Explain why breathing air is easier than using water for gas exchange.

22.5  what adaptations lead scientists to think that lungs facilitated the movement of tetrapods to land?

22.6  You are responsible for knowing the structures of the respiratory system.

22.7  Knowing the structures of the respiratory system, describe how smoking effects the system.

22.8  What is negative pressure breathing?  How does it work?

22.9  How is breathing controlled?

22.10  Figure 22.10 we will talk about with circulatory system as well. 

22.11 Here is hemoglobin again.  Take a look at the figure (22.11)

22.12  How does a baby exchage gases?