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Practice Test - 7

Welcome to your Human Physiology -2

1. 
Breathing is best defined as

2. 
Residual volume of lungs prevents

3. 
Hemoglobin is present in

4. 
Which muscle contracts during inspiration?

5. 
Partial pressure gradient is essential for

6. 
Which condition increases oxygen release in tissues?

7. 
Exchange of gases in lungs occurs due to

8. 
Bohr effect relates to

9. 
Which structure prevents food from entering trachea?

10. 
Which gas has higher diffusion rate?

11. 
Expiration is normally a

12. 
Alveolar walls are extremely thin to

13. 
Oxygen is transported mainly by

14. 
Which factor does NOT affect diffusion of gases?

15. 
Which vertebrates respire only through lungs?

16. 
Respiratory disorders affect mainly

17. 
Cutaneous respiration is seen in

18. 
Which gas is utilised by organisms to release energy?

19. 
In insects, respiration occurs through

20. 
Which enzyme catalyses conversion of CO₂ to carbonic acid?

21. 
Partial pressure of oxygen is highest in

22. 
Total lung capacity includes

23. 
Carbon dioxide is transported mainly as

24. 
Exchange of gases in sponges occurs through

25. 
Oxygen dissociation curve shifts right due to

26. 
Emphysema is caused by damage to

27. 
Number of lungs in humans is

28. 
Smoking affects respiration by

29. 
Diaphragm is

30. 
Which part of respiratory tract lacks cartilage?

31. 
Oxyhaemoglobin formation depends on

32. 
Vital capacity is maximum amount of air that can be

33. 
Myoglobin is present in

34. 
Which respiratory organ is used by fishes?

35. 
The thoracic cavity is anatomically an

36. 
Intrapulmonary pressure is pressure

37. 
Tidal volume refers to

38. 
Which pigment carries oxygen in humans?

39. 
Inspiration occurs when

40. 
Which condition favours oxygen binding to Hb?

41. 
Which gas is transported least by blood?

42. 
Which membrane covers lungs?

43. 
Alveoli are specialised for

44. 
Respiratory surface must be

45. 
Chloride shift occurs in