1. The length of human trachea is about (Gujarat C.E.T.Q.B.)
Correct : B. 12 cm
2. The trachea is supported by, cartilaginous rings,which are.........shaped
Correct : A. C
3. Sound production in humans is controlled by
Correct : C. Larynx
4. A lung contains many small balloon like air sacs. are called.....
Correct : B. Alveoli
5. The intake of air is called ?
Correct : B. Inhalation
6. Intercostal muscles regulate the movement of
Correct : A. Ribs
7. The muscles present between ribs are called
Correct : B. Intercoslal muscles
8. During exhalation, the diaphragm moves
Correct : C. Upwards
9. Respiratory control centres are loacted in
Correct : B. Medulla oblongata
10. The de-oxygenated blood from heart comes to the lungs by
Correct : A. Pulmonary artery
11. Oxygen containing blood transported from lungs is to heart by
Correct : B. Pulmonary vein
12. How much fraction of oxygen is transported to tissues through RBCs?
Correct : D. 97%.
13. H2 CO3 is converted into CO2 and H2O with the help of an enzyme known as
Correct : D. Carbonic anhydrase.
14. The metal ion present in haemoglobin is
Correct : A. Iron
15. One RBC can transport about how many molecles of oxygen?
Correct : C. One billion
16. How many percentage of CO2 transport in the form of carbamino compounds ?
Correct : D. 20%
17. The largest amount of CO2 is transported in blood as
Correct : B. Bicarbonates
18. Chloride back-shift is associated with the transport of
Correct : C. Oxygen
19. CO2 reacts with water to form
Correct : B. Carbonic acid
20. Bronchitis is a
Correct : A. Bacterial infection
21. Asthma is a disease of
Correct : B. Trachea and its branches
22. Flattening of alveolar ducts (tracheal vessels) results in
Correct : B. Emphysema
23. Which of these protects the larynx
Correct : C. Epiglottis
24. Trachea terminates in
Correct : A. Bronchi
25. In which form CO2 is not transported by blood plasma
Correct : B. KHCO3
26. Which one is not viral infection
Correct : A. Vocational lung disease
27. They respire through lungs
Correct : C. Crocodiles
28. The muscles take part in rapid breathing
Correct : B. Muscles of neck region and abdominal region
29. Human lungs are situated in
Correct : B. Thoracic cavity
30. Blockage in respiratory passage in humans is prevented due to the presence of
Correct : D. ‘C’ shaped cartilagenous rings.
31. In human beings
Correct : A. Left lung is slightly smaller
32. The left lung is slightly smaller so as
Correct : D. To accommodate heart.
33. In which disease lung tissue degenerate?
Correct : D. Emphysema.
34. Which is the lung disorder related to profession?
Correct : A. Silicosis
35. This disease is due to first virus infection followed by bacterial attack
Correct : B. Bronchitis
36. The disease in which masses of undifferentiated cells formed in tracheal walls
Correct : C. Lung cancer
37. This disease is due lo allergens
Correct : D. Asthma
38. During inhalation the following activities occur
Correct : B. Area of rib cage increases, diaphragm is pulled downward
39. Blood transports oxygen in the form of
Correct : C. KHbO2
40. In which three forms of CO2 is transported by blood
Correct : B. As a solution, carbamino proteins,KHCO3
41. Carbamino proteins are formed in
Correct : A. Blood plasma
42. The centre which excites both the activities during rapid breathing is
Correct : A. Ventral respiratory center
43. The function of pneumotoxic center is
Correct : A. To regulate inhalation
44. AIDS patients are susceptible to this respiratoty disease
Correct : A. Pneumonia
45. The full from of Hb is
Correct : D. Haemoglobin
46. H.Hb is
Correct : D. Haemoglobin acid
47. The enzyme carbonic anhydrase is of which type?
Correct : B. reversible
48. What is role of buffer system in blood ?
Correct : B. To maintain pH of blood
49. CO2 combines in human RBC with the which ion of haemoglobin
Correct : A. -NH2
50. On respitatory surface,KHCO3 formed in RBC reacts with
Correct : A. H.HbO2
51. Where Bicarbonate is conveted into carbonic acid
Correct : A. In the RBC of capillaries around the lungs
52. Maximum amount of O2 is transported in humans by
Correct : A. RBC
53. CO2 from RBC enters blood plasma in the form of
Correct : B. HCO3–
54. The human ribs
Correct : D. Are not respiratory organs
55. Respiration rate is the lowest during.
Correct : D. Sleeping
56. Hamburger’s phenomenon is also known as(CPMT.1988,1991,AMU.2001,J.LPME.R.2002)
Correct : D. Chloride shift
57. Oxygen carrying capacity of blood is (CPMT.1990)
Correct : A. 20%
58. Respiratory movements are controlled by (A.P.M.E.E.1978,C.P.M.T.1998)
Correct : C. Medulla oblongata
59. At higher CO2 condtcentration,oxygen dissociation curve of haemoglobin will (CPMT.1990)
Correct : B. Move to right
60. Chloride shift is required for transport of (CPMT.1990)
Correct : C. Carbon dioxide
61. Volume of air inspired or expired with each normal breath is known as(CMPT.1992,AMU.2000)
Correct : C. Tidal volume
62. Oxygen haemoglobin dissociation curve will shift to right on decrease of (AMU.1992)
Correct : D. pH
63. Is Double membrane pleard sac is situated...... (J.K.C.M.E.E.1992)
Correct : C. Envelops the lungs
64. In expiration, diaphragm becomes (C.P.M.T.1993)
Correct : B. Relaxed
65. Carbon dioxide is transported from tissues to respiratory surface by only(C.B.S.E.1993)
Correct : A. Plasma and erythrocytcs
66. Respiratory centre is situated in CPMT.1980,2002,B.H.U.1995,M.P.P.M.T.1998,C.B.S.E.1999,R.PMT.2006)
Correct : B. Medulla oblongata
67. Which is false ? (Manipal 1995)
Correct : B. Pleura is double covering of kindey
68. Volume of air breathed in and out during effortless respiration is (Kerala 2001)
Correct : C. tidal volume
69. Body tissue obtain oxygen from haemoglobin due to its dissociation in tissues caused by (M.P.PMT.1995)
Correct : B. Low oxygen concentration
70. Lungs have a number of alveoli for (M.P.PMT.1995)
Correct : B. More surface area for diffusion of gases
71. Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is (C.B.S.E.1995)
Correct : D. An efficient system of ventilation with little residual air.
72. During transport of CO2 blood does not become acidic due to (C.B.S.E.1995)
Correct : C. Blood buffers
73. At high altitude,RBCs of human blood will (C.B.S.E.1995,Pb.PMT.1999,J.LPM.E.R.2000)
Correct : A. Increase in number
74. CO2 is transported (C.B.S.E.1095)
Correct : D. As carbaminolaemoglobin and carbonic acid
75. Maximum amount 70-75% of carbon dioxide transport occurs as (R.P.M.T.1996,1998,Kamataka 1997,M.P.PMT.1998,C.P.M.T.1998,B.V.2002)
Correct : C. Bicarbonate
76. Trachea is lined with incomplete rings of (D.P.M.T.1996)
Correct : D. Hyaline cartilage
77. Oxygen and carbon dioxide are transported in blood through (CB.S.E.1996)
Correct : D. RBCs and plasma
78. About 1500 ml of air left in lungs is called (CB.S.E.1996)
Correct : C. Residual volume
79. Which one protects the lungs? (B.H.U.1990)
Correct : D. All the above
80. Which one has the lowest value?
Correct : A. Tidal volume
81. A child was killed through asphyxiation. Post morturm confirmed it because a piece of lung put in water (M.P.PMT.1996)
Correct : B. Kept floating
82. A molecule of haemoglobin carries how many oxygen molecules ((M.P.P.M.T.1997,Tamil Nadu 2001,C.F.M.T.2002,J.CM.E.E.2004)
Correct : D. 4
83. In carbon monoxide poisoning there is (A.F.M.C 1997)
Correct : C. Decrease in free haemoglobin
84. Exchange of gases in lung alveoli occurs through (CB.S.E.1998,A.FMC.2002)
Correct : C. Simple diffusion
85. Haemoglobin is (CB.S.E.1999)
Correct : D. Respiratoy pigment
86. Vocal cords occur in
Correct : B. Larynx
87. The cells which do not respire (A.FMC.2001)
Correct : D. Erythocytes
88. Hiccough (hiccup) is due to activity of (Manipal 2001)
Correct : C. Diaphragm
89. Bicarbonate formed inside erythrocytes moves out to plasma while chloride of plasma pass into erythrocytes.The phenomenon is called (Kerala 2001,2003)
Correct : C. Hamburger phenomenon
90. Respiratory centre of brain is stimulated by (A.I.I.M.S 2000)
Correct : D. Oxygen content in arterial blood
91. A higher CO2 concentration of blood causes (AM U.2001)
Correct : C. Slow diffusion of o2 from blood
92. Gases diffuse over the respiratory surface because of (Manipal 2002)
Correct : A. O2 is more in alveoli than in blood
93. Dissociation curve of O2 (which is dissociation from Hb) shifts to the rights....
Correct : C. CO2 concentration increase
94. Thoracic cage of man is formed of (M.P.P.M.T.2002)
Correct : B. Ribs,sternum and thoracic vertebrae
95. Vital capacity of lung is equal to (Karnataka 2002)
Correct : A. IRV+ERV+TV
96. Dead space is (Manipal 2003)
Correct : A. Upper respiratory tract
97. Carbon monoxide contained in Tobacco smoke (A.I.E.E.E.2003)
Correct : C. Reduces oxygen carrying capacity of blood
98. What is correct ? (Orissa 2003)
Correct : B. Alveolar ventilation is less than pulmonary ventilation
99. Increase in CO2 concentration shall cause (CB.S.E.2004)
Correct : C. Faster and deeper breathing
100. SARS is caused by a variant of (A.I.I.M.S 2004)