Respiratory Gas Exchange and Diffusion Quiz
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Questions and Answers

Which process is responsible for the exchange of respiratory gases in the alveoli of the lungs and the capillaries of the body tissues?

  • Diffusion (correct)
  • Active transport
  • Filtration
  • Osmosis
  • What factor affects the rate of diffusion of respiratory gases across the alveolar capillary membrane?

  • Thickness of the membrane (correct)
  • Surface area
  • Pressure
  • Temperature
  • What is the consequence of a thickened membrane in the alveolar capillary membrane?

  • Increased diffusion
  • Decreased pulmonary edema
  • Increased delivery of oxygen to tissues
  • Decreased exchange of respiratory gases (correct)
  • Which condition is associated with a thickened membrane in the alveolar capillary membrane?

    <p>Pulmonary edema</p> Signup and view all the answers

    Which compound is formed when carbon dioxide diffuses into red blood cells?

    <p>Carbonic acid</p> Signup and view all the answers

    What happens to carbonic acid once it is formed in red blood cells?

    <p>It dissociates into hydrogen and bicarbonate ions</p> Signup and view all the answers

    What is the role of hemoglobin in the transport of carbon dioxide?

    <p>It buffers the hydrogen ions</p> Signup and view all the answers

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