Session 4 Review Questions

1. What is an overall run down of the PO₂ workings in blood?

2. Why does low pH make extra PO₂ unloading?

3. Explain Dalton’s Law.

4. Explain Henry’s Law.

5. What is inspiration and expiration?

6. How is PO₂ changed?

7. Explain the oxyhemoglobin curve.

8. Process of inspiration and expiration.

9. Why is O₂ unloaded into systemic tissues?

10. Explain the pH diagram.

11. How does exercise increase oxygen unloading?

12. What does % saturation of hemoglobin mean?

13. How do you change PO₂?

14. What is PO₂?

15. What is hemoglobin?

16. How does pressure gradient work?

17. ______and ______increases oxygen unloading.

a. increase pH, increase temperature

b. decrease pH, increase temperature

c. increase pH, decrease temperature

d. decrease pH, decrease temperature

18. What does surfactant do?

19. What two reasons cause for an increase in O₂ unloading when exercising?

20. According to Henry’s Law, what factor(s) affect gas-dissolvability?

a. solubility

b. temperature

c. partial pressure of gas

d. all of the above

21. How many O₂ and hemoglobin molecules attach to one red blood cell?

a. 5 oxygen, 3 hemoglobin

b. 4 oxygen, 6 hemoglobin

c. 4 oxygen, 4 hemoglobin

d. 5 oxygen, 5 hemoglobin

22. How many O₂ are transported on one hemoglobin?

23. What is inspiration?

24. What is expiration?

25. What is the difference between Henry’s, Boyle’s, and Dalton’s laws?

26. The amount of gas dissolved in liquid depends on what 3 things?

27. How do you change PO₂?

28. What does 1 hemoglobin molecule carry?

29. How does pH affect PO₂?

30. How does temperature affect PO₂?

31. What is pressure gradient?

32. What is inspiration?

33. What is expiration?

34. What is the oxyhemoglobin curve?

35. What is the effect of pH on the oxyhemoglobin curve?

36. What is the effect of temperature on the oxyhemoglobin curve?

37. Name 3 factors that determine gas dissolvability.

38. How do you change PO₂?

39. What does surfactant reduce and why?

40. Explain inspiration and expiration.

41. Explain Dalton’s law.

42. How do you change PO₂?

43. What does % saturation of hemoglobin mean?

44. Low blood pH and high body temperature are effects of doing what?

45. What is surfactant and what does it do?

46. What does Boyle’s law say?

47. What is a pressure gradient?

48. How many O₂ molecules can be carried on one red blood cell?

49. What does Henry’s law relate to?

50. What are 2 factors in changing PO₂?

51. True/False: Surfactant is needed only by mammals.

52. How do you read a diagram involving temperature and saturation?

53. How do you change PO₂?

54. How many hemoglobins are there on one red blood cell?

55. Explain Henry’s law.

56. Explain Dalton’s Law.

57. Explain the processes of inspiration and expiration.

58. How do you change PO₂?

59. Explain the oxyhemoglobin curve.

60. What is the difference between Boyle’s Law and Dalton’s Law?

61. Explain the oxyhemoglobin curve.

62. Explain % saturation of hemoglobin at the system tissues and alveoli. How does this affect unloading?

63. How does exercise increase oxygen unloading?

64. Why is surfactant important?

65. Explain 1 of the important laws related to the respiratory system.

66. What concerning blood, what part of Henry’s law changes?

67. What would happen if surfactant was not produced?

68. How many oxygen molecules can hemoglobin hold?

69. Why is the % saturation different in the alveoli and the systemic tissue?

70. Why does exercise increase oxygen unloading?

71. Explain how inspiration and expiration work.

72. What three factors determine gas dissolvability?

73. How do you change PO₂?

74. What does the difference in percent saturation mean in terms of oxygen unloading?

75. When temperature increase and pH decreases, what happens to oxygen unloading?

76. How does exercising change your temperature in regards to the O₂ content?

77. Explain the difference in percent saturation in regards to the alveoli and systemic tissue.

78. What changes in your body changes the PO₂?

79. Why is surfactant so important to our health?

80. Why is Dalton’s law so important to the gases we breathe in?