Contents

Oxygen from the lungs enter into the blood due to
a) less affinity of O2 for air
b) diffusion                         
c) osmosis
d) higher affinity of CO2 for air


b

In which disease the wall of alveoli is broken?
a) Pneumonia                      
b) bronchitis
c)emphysema                     
d) asthma

c

The diaphragm is flat , the ribs move out; this occurs during:
a) Expiration                       
b) inspiration
c) lungs expansion                              
d) breathing

b

The chest cavity is separated from the abdominal cavity by a muscle called…….
a) Larynx                                             
b) trachea
c) bronchus                          
d) diaphragm


d

Respiration at cellular level is known as…
a) breathing                         
b) ventilation
c) oxidation                         
d) inhalation

c

High fever, cold and cough with sputum production are symptoms of ………….
a) emphysema                    
b) asthma
c) pneumonia                      
d) bronchitis


c