Class X

Bacterium, Streptococcus pneumonia, causes respiratory disorder known as
  1. asthma
  2. emphysema
  3. bronchitis
  4. pneumonia
Process through which animals take oxygen (O2) from air and release carbon dioxide (CO2) into air is called
  1. breathing
  2. gaseous exchange
  3. respiratory exchange
  4. cellular respiration
Flap of tissues which guards glottis is classified as
  1. alveolar ducts
  2. alveoli
  3. epiglottis
  4. voice box
Right lung is bigger than left lung with
  1. five lobes
  2. three lobes
  3. four lobes
  4. two lobes
Amount of carbon dioxide (CO2) present in expired air is
  1. 0.06%
  2. 0.04%
  3. 4%
  4. 6%
Time Elapsed

HR : MIN : SEC
Question Answered
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Score out of 100
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