Pages where the answers may be found in the newer edition will appear second and are indicated in
bold print.

Use complete sentences to answer the questions which follow.  Please place these
responses on your own paper.

1.    What is blood plasma?  What percentage of our blood is plasma?  What percentage
       of our plasma is water?  (p. 192) (p. 201)
2.    Our red blood cells contain the iron-protein compound hemoglobin.  What is
       its function?  (pp. 192-193) (p. 201)
3.    What is the general function of white blood cells?  (p. 193) (p. 201)
4.    What is the function of platelets?  (p. 193)  (p. 201)
5.    What is the shape of a red blood cell?  (p. 193)  (p. 202)
6.    Compare the relative sizes of red blood cells, white blood cells, and platelets.  (p. 193) (p. 202)