Respiration MCQ Multiple Choice Questions Answers - Page 2 for Practice
31. When Bohr effect occurs due to increased CO2 tension, Oxygen affinity of Hb decreases . The reason for increased CO2 tension is
Correct Answer is: Increase in P50
32. Haldane effect refers to
Correct Answer is: Increased CO2 uptake to minimize CO2 tension
33. Hiccup is due to
Correct Answer is: Irritation of Phrenic nerve
34. Pneumotaxic center is
Correct Answer is: Inhibitory
35. Tracheal respiration is found in
Correct Answer is: Insects and Millipedes
36. Diaphragm is supplied with Phrenic nerve and is involved in
Correct Answer is: All these
37. Pinnaglobin is a brown coloured blood pigment present in the plasma of the mollusk Pinn. It contains
Correct Answer is: Manganese
38. Foetal hemoglobin has great affinity than adult hemoglobin because
Correct Answer is: It binds 2,3 DPG less avidity by Gamma polypeptide chain than HbA
39. During transportation of Carbon dioxide, blood will not become acidic, because
Correct Answer is: It contains Buffers
40. Mammalian RBC respire anaerobically because
Correct Answer is: It lacks Mitochondria
41. 2,3 DPG causes shifting of Oxygen dissociation curve in Adult Hb to Right because
Correct Answer is: It binds to Beta chain of Hb
42. Dead air is not involved in respiration because
Correct Answer is: It is trapped in nasal passage
43. Opercular gills are found in
Correct Answer is: Both a and b
44. In which part of the body Mycobacterium tuberculosis affects
Correct Answer is: All these
45. The impulse for voluntary muscles for forceful breathing starts in
Correct Answer is: Medulla ( Pons )
46. The Alveolar epithelium is lined with
Correct Answer is: Non- ciliated Squamous epithelium
47. Which of the following gas mixture is used by Divers to prevent Oxygen toxicity
Correct Answer is: Oxygen and Nitrogen
48. Oxygen dissociation curve shows the relation between
Correct Answer is: Oxyhemoglobin saturation and Oxygen tension
49. The common drugs used against TB is
Correct Answer is: All these
50. Carbonic anhydrase in the RBC is the fastest enzyme and it decompose in one second for fast action. Its concentration in the blood due to the presence of
Correct Answer is: Sodium ions
51. Tachypnoea means
Correct Answer is: Rapid shallow breathing
52. Advantage of Double Bohr effect is
Correct Answer is: Reciprocal exchange of Oxygen for Carbon dioxide
53. Which one is a Non – reversible pulmonary disease in which the bronchi are blocked with mucous and infection and rupture of alveoli
Correct Answer is: Emphysema
54. Myoglobin is a muscle hemoglobin which exhibits Hyperbolic oxygen dissociation curve indicating its great affinity towards Oxygen ( Non cooperative binding ). The Hyperbolic nature of the curve is due to
Correct Answer is: Single polypeptide ( 153 amino acids ) and Monomeric nature
55. Cloacal respiration is found in
Correct Answer is: Turtle and Tortoise
56. Pulmonary ventilation is
Correct Answer is: Tidal volume + Respiratory rate
57. Spirometry is used
Correct Answer is: To detect the air flow through the respiratory system
58. Bohr effect shifts the O2 – Hb dissociation curve to right
Correct Answer is: To promote oxygenation of Hb in lungs
59. At high altitude, the number of RBC increases
Correct Answer is: To trap O2 from rarefied air having low PO2
60. The chief difference between Trachea and Bronchioles is
