Biology

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25 Questions - Developed by: V - Developed on: - 568 taken

  • 1
    - The amount of gas dissolved in the liquid is proportional to the partial pressure of this gas, and its coefficient of solubility (Henry law)
  • 2
    - The amount of O2 dissolved in 1 l of blood can never exceed 3 ml
  • 3
    - The amount of CO2 dissolved (physically) in blood is several times higher than the amount of oxygen in spite of the lower partial pressure of CO2
  • 4
    - The coefficient of CO2 solubility in the blood is several times higher than the coefficient for O2
  • 5
    - A majority of oxygen in blood is transported „chemically“ being bound on haemoglobin
  • 6
    - In blood a majority of „dissolved“ CO2 does not create the chemical compounds
  • 7
    - Oxygen is transported between the lungs and tissues by the respiratory system
  • 8
    - The diffusion of CO2 in the lungs is facilitated by a reverse diffusion of oxygen in the lungs (Dalton law)
  • 9
    - A percentage and volume fraction of O2, CO2, N2 in the alveolar air is not reduced by the presence of water vapours (comparing with atmosphere)
  • 10
    - A partial pressure of oxygen in arterial blood is lower than that one in atmosphere or within the airways
  • 11
    - A partial pressure of oxygen in arterial blood approximately equals to a partial pressure of carbon dioxide within the atmosphere
  • 12
    - Oxygen is transported (by blood) being dissolved (physically) in the blood and also „chemically“ bound to haemoglobin
  • 13
    - Oxygen diffuses through the alveolocapillary membrane from the pulmonary alveols into the pulmonary capillaries because the partial pressure of air within the alveols is higher
  • 14
    - Carbon dioxide diffuses through the alveolocapillary membrane from the pulmonary capillaries into pulmonary alveols because there is a higher partial pressure of carbon monoxide within the pulmonary capillaries.
  • 15
    - The internal respiration (at the cellular level) involves diffusion, perfusion, and distribution
  • 16
    - The internal respiration (at the cellular level) requires the proper functions of the external respiration and the work of the heart and blood vessels
  • 17
    - A quiet respiration in an adult supplies the body by approximately 2500 ml of O2 and releases approximately 2000 ml CO2 from the body every minute
  • 18
    - The external respiration involves ventilation, distribution, diffusion, and perfusion
  • 19
    - The external respiration is performed exclusively by the lungs
  • 20
    - The diffusion of O2 and CO2 follows their pressure gradients both at the alveolocapillary membrane and the cell membranes of the tissues
  • 21
    - The diffusion coefficient of O2 is approximately 20-fold the diffusion coefficient of CO2
  • 22
    - Partial pressures of N2, O2, and CO2 can be calculated according to Dalton law
  • 23
    -(2015)Pressure gradient of O2 diffusion in lungs is approximately 8 torr
  • 24
    -(2015)Total temperature of gas mixture is expressed by Daltons law
  • 25
    Yes.

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