Gas exchange MCQ 7+

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• When CO2is removed from the blood in the lungs, there is a net
  ক

  Efflux of Cl- from RBC

  খ

  Influx of HCO3-into RBC

  গ

  Increase in pH of blood

  ঘ

  Efflux of O2 from RBC

  ঙ

  Influx of CO2 into RBC
• When CO2 is removed from the pulmonary capillary, there is a net
  ক

  Efflux of Cl- from RBC

  খ

  Influx of HCO3 in RBC

  গ

  Increase in pH of blood

  ঘ

  Efflux of O2 from RBC

  ঙ

  Increase in PCV of blood
• Rate of gase diffusion through the respiratory membrane is
  ক

  Inversely proportional to thickness of respiratory membrane

  খ

  Directly proportional to surface area of respiratory membrane

  গ

  Directly proportional to pressure difference of gas

  ঘ

  Inversely proportional to solubility of the membrane

  ঙ

  Inversely proportional to diffusion co-efficient of gas
• Gaseous exchanges through the respiratory membrane is directly proportional to
  ক

  Surface area of respiratory membrane

  খ

  Diffusion co-efficient of gas

  গ

  Solubility of the gas

  ঘ

  The thickness of respiratory membrane

  ঙ

  Molecular weight of the gas
• Rate of gas diffusion through the respiratory membrane is directly proportional to
  ক

  Surface area of the membrane

  খ

  Solubility of gas

  গ

  Diffusion coefficient

  ঘ

  Molecular weight of gas

  ঙ

  Thickness of the membrane
• Rate of gas diffusion through the respiratory membrane is
  ক

  Directly proportional to diffusion coefficient of the gas

  খ

  Inversely proportional to the thickness of respiratory membrane

  গ

  Directly proportional to solubility of the gas

  ঘ

  Inversely proportional to the pressure gradient between two sides of membrane

  ঙ

  Directly proportional to molecular weight of the gas
• Following are the signs of O2 toxicity
  ক

  Seizure

  খ

  Retrolental fibroplasia

  গ

  Dry cough

  ঘ

  Loss of deep tendon reflex

  ঙ

  Palpitation