Exercise Physiology - Qp10

10 Questions | Total Attempts: 41

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Exercise Physiology - Qp10

Questions and Answers
  • 1. 
    The only function of the respiratory system is to operate in conjunction with the vascular system in the process of gaseous exchange.
    • A. 

      True

    • B. 

      False

  • 2. 
    Blood in the pulmonary capillaries, which surround the alveoli, has a partial pressure of oxygen of ______.
    • A. 

      20mmHg

    • B. 

      30mmHg

    • C. 

      40mmHg

    • D. 

      50mmHg

  • 3. 
    Each molecule of haemoglobin, when fully saturated, can combine with five oxygen molecules, which amounts to around 1.34 ml.
    • A. 

      True

    • B. 

      False

  • 4. 
    ATP stands for:
    • A. 

      Adenosine Trinitrate

    • B. 

      Adenosine Trisulphate

    • C. 

      Adenosine Triphosphate

  • 5. 
    Two factors are involved in the control of breathing: (Select two)
    • A. 

      Neural control

    • B. 

      Chemical control

    • C. 

      Hormonal control

  • 6. 
    With altitude, there is an increase in atmospheric pressure but the percentages of gases within the air remains identical to that at sea level.
    • A. 

      True

    • B. 

      False

  • 7. 
    Pulmonary diffusion refers to the process of gaseous exchange in the lungs, and has three major functions
    • A. 

      True

    • B. 

      False

  • 8. 
    The pressure gradient is relatively small, the carbon dioxide can cross the respiratory membrane much quicker than oxygen, as its membrane solubility is 20 times greater.
    • A. 

      True

    • B. 

      False

  • 9. 
    Muscle cells contain molecules known as myoglobin.
    • A. 

      True

    • B. 

      False

  • 10. 
    The lungs have a safety mechanism to make sure that they are never over-inflated which is known as Hering-Breuer reflex.
    • A. 

      True

    • B. 

      False

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