Class XI

The specialized centre which can reduce the inspiratory duration upon stimulation is
  1. Apneusticcentre
  2. Medullary inspiratory centre
  3. Chemosensitivecentre
  4. Pneumotaxic centre
Which of the following blood components play a major role in blood coagulation ?
  1. Lymphocytes
  2. Granulocytes
  3. Thrombocytes
  4. Fibrinocytes
Vital capacity of our lungs include all of the following excep
  1. IRV
  2. ERV
  3. TV
  4. RV
The exposure of carbon monoxide to animals
  1. Reduces carbon dioxide transport
  2. Increases carbon dioxide transport
  3. Reduces oxygen transport
  4. Destroys haemoglobin
The solubility of carbon dioxide is
  1. 20 – 25 times higher than that of oxygen
  2. 20 – 25 times lower than that of oxygen
  3. 10 – 15 times lower than that of oxygen
  4. 10 – 15 times higher than that of oxygen
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