PrepBharat

1.The mode of respiration in rabbit is
a) Cutaneous
b) Mucosal
c) Tracheal
d) Pulmonary

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2. The respiratory diffusion membrane is majorly made of _______ layers
a) 2
b) 3
c) 4
d) 5

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3.The solubility of \[CO_{2}\] is _______ times higher than that of O₂.
a) 10-15
b) 20-25
c) 30-35 times
d) 210 times

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4.What is the value of [PO₂ (in deoxygenated blood) minus \[PCO_{2}\] (in deoxygenated blood)]?
a) 5
b) -5
c) 45
d) 40

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5.Select the incorrect statement from the following:
a) Diffusion of \[O_{2}\] occurs from alveoli to tissue.
b) Diffusion of \[CO_{2}\] occurs from tissue to alveoli.
c) Amount of \[CO_{2}\] diffused through membrane is higher than that of \[O_{2}\].
d) Partial pressure of \[O_{2}\] is higher in pulmonary artery than that of pulmonary vein.

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6. The total thickness of respiratory diffusion membrane is
a) Less than fm
b) Less than micrometer
c) Much less than mm
d) Less than nm

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7.Diffusion membrane is made up of
a) Thin squamous epithelium of alveoli
b) Endothelium of alveolar capillaries
c) Basement membrane between the two layers
d) All the above

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8. Partial pressures (in mmHg) of \[O_{2}\] in atmospheric air, alveoli, deoxygenated blood, oxygenated blood and tissues are
a) 159,104,40,95,40
b) 104,40,40,95,159
c) 0.3,40,45,40,45
d) 159,104,45,95,40

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9. Partial pressure (in mmHg) of \[CO_{2}\] in atmospheric air, alveoli, deoxygenated blood, oxygenated blood and tissues are
a) 159,104,40,95,40
b) 104,40,40,95,159
c) 0.3,40,45,40,45
d) 159,104,45,95,40

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10. The total percentage of \[O_{2}\] transported by haemoglobin or RBC is
a) 3%
b) 97%
c) 70%
d) 7%

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