If the thoracic wall is punctured air leaking in will

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General Chemistry
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Chapter 12 / Exercise 12.111
General Chemistry
Ebbing/Gammon
Expert Verified
21. If the thoracic wall is punctured, air leaking in will cause the lung to collapse. Thus in the normal, intact thoracic cavity, a. lung expansion is passive. b. air pressure is the same as it is on the outside. c. a slight suction keeps lungs inflated. d. breathing movements keep lungs inflated. e. Both a and b Answer: c
22. Which part of the blood is most efficient at carrying oxygen?
23. Which of the following would increase the amount of oxygen diffusing from the lungs into the blood?
24. Each molecule of hemoglobin, when fully saturated, carries how many molecules of oxygen?
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
General Chemistry
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Chapter 12 / Exercise 12.111
General Chemistry
Ebbing/Gammon
Expert Verified
25. Hemoglobin delivers O 2 to body cells from the red blood cells a. until the hemoglobin is depleted of O 2 . b. until the partial pressures of O 2 in the cells are equivalent. c. although the hemoglobin is never completely saturated. d. by releasing O 2 to cells with higher partial pressure of oxygen. e. until the fluid pressure in the red blood cells is lower. Answer: b
26. In which of the following P O2 environments will hemoglobin release its O 2 most easily?
27. What is the advantage of having myoglobin in muscle cells?
28. What benefit is provided by fetal hemoglobin?

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