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Respiration in human beings - class-X

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Multiple Choice

Fill the following table related to partial pressure (in mm of Hg) of respiratory gases in different parts: 

Respiratory gases  Alveoli Blood (oxygenated ) Tissues
$O _2$ - - $40$
$CO _2$ $40$ $40$ -
  1. $104,95,45$
  2. $40,45,95$
  3. $95,104,45$
  4. $95,40,45$
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