Science Quiz: Physiology Of Gas Exchange

10 Questions | Total Attempts: 2452

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Science Quiz: Physiology Of Gas Exchange

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Questions and Answers
  • 1. 
    Air comprises the following components?
    • A. 

      Oxygen, Carbon Dioxide, Natural Gas and Helium

    • B. 

      Oxygen, Carbon Dioxide, Nitrogen and Natural Gas

    • C. 

      Oxygen, Carbon Dioxide, Water Vapour and Natural Gas

    • D. 

      Oxygen, Carbon Dioxide, Nitrogen and Water Vapour

  • 2. 
    What percentage of Oxygen makes up air?
    • A. 

      31%

    • B. 

      40%

    • C. 

      21%

    • D. 

      50%

  • 3. 
    What units are used to describe the measure of Atmospheric Pressure?
    • A. 

      Cm (Centimetres)

    • B. 

      MmHg (millimetres of mercury)

    • C. 

      Mm (Millimetres)

    • D. 

      Ng (Nanograms)

  • 4. 
    Gaseous exchange occurs at alveoli and cellular level using what principle?
    • A. 

      Diffusion

    • B. 

      Osmosis

    • C. 

      Transport

    • D. 

      Convection

  • 5. 
    External respiration can be described as?
    • A. 

      The exchange of gases at a cellular level within the body

    • B. 

      The active process of inhalation

    • C. 

      The exchange of gases at alveoli level within the lungs

    • D. 

      The passive process of exhalation

  • 6. 
    Oxygen is transported in the blood by binding to?
    • A. 

      White Blood Cells

    • B. 

      Plasma

    • C. 

      Haemoglobin

    • D. 

      Water

  • 7. 
    How is carbon dioxide transported in the blood?
    • A. 

      By combing with water in the plasma to produce bicarbonate

    • B. 

      Binding to white blood cells

    • C. 

      Binding to plasma

    • D. 

      Binding with haemoglobin

  • 8. 
    The diffusion of O2 and CO2 at a cellular level is described as?
    • A. 

      Internal respiration

    • B. 

      External respiration

    • C. 

      Gas transfer

    • D. 

      Gas transport

  • 9. 
    Which vessel(s) carry deoxygenated blood to the lungs?
    • A. 

      Left and Right Pulmonary Arteries

    • B. 

      Pulmonary Capillaries

    • C. 

      Superior and Inferior Vena Cava

    • D. 

      Right and Left Pulmonary veins

  • 10. 
    Oxygen rich blood is pumped out of which chamber of the heart into the aorta?
    • A. 

      Right Ventricle

    • B. 

      Left Ventricle

    • C. 

      Right Atrium

    • D. 

      Left Atrium

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