5
MCQ (Single Correct Answer)
Mark the true statement among the following with reference to normal breathing
A
inspiration is a passive process whereas expiration is active
B
inspiration is a active process whereas expiration is passive
C
inspiration and expiration are active processes
D
inspiration and expiration are passive processes
6
MCQ (Single Correct Answer)
A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is
A
total lung capacity
B
tidal volume
C
vital capacity
D
inspiratory capacity
7
MCQ (Single Correct Answer)
Mark the incorrect statement in context to $\mathrm{O}_2$ binding to Hb
A
higher pH
B
lower temperature
C
lower $p \mathrm{CO}_2$
D
higher $\mathrm{pO}_2$
8
MCQ (Single Correct Answer)
Mark the correct pair of muscles involved in the normal breathing in humans.
A
External and internal intercostal muscles
B
Diaphragm and abdominal muscles
C
Diaphragm and external intercostal muscles
D
Diaphragm and intercostal muscles
9
MCQ (Single Correct Answer)
Incidence of emphysema a respiratory disorder is high in cigarette smokers. In such cases
A
the bronchioles are found damaged
B
the alveolar walls are found damaged
C
the plasma membrane is found damaged
D
the respiratory muscles are found damaged