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Q1. Which of the given would slow down gas exchange between blood and alveolar air?

A. Rise in membrane thickness
B. Rise in alveolar surface area
C. Rise in respiratory rate
D. Reduction in membrane thickness
E. Reduction in the nitrogen solubility

Q2. Carbon monoxide competes with the oxygen for the same binding site.

A. True
B. False

Q3. Breathing is controlled exclusively by the medulla oblongata and pons.

A. True
B. False

Q4. Each alveolus is surrounded through a basket of blood capillaries supplied by:

A. Aorta.
B. Pulmonary artery.
C. Pulmonary vein.
D. Inferior vena cava.
E. Superior vena cava.

Q5. The Valsalva maneuver can help in diagnosing a hernia by:

A. Rising intrathoracic pressure.
B. Rising intra-abdominal pressure.
C. Rising expiratory force.
D. Reducing expiratory force.
E. Rising mediastinal pressure.

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  • Category:- Biology
  • Reference No.:- M99377

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