Which of the following is in the correct path of CO2 moving from the tissues to
ID: 3519302 • Letter: W
Question
Which of the following is in the correct path of CO2 moving from the tissues to the atmosphere reaction with H2O to make H2CO3, dissociation to H and HCO3, H reaction with H20 to make H2COs, dissociation to H and HCO3, H combines with imidazole side chain of hemoglobin, carried back to lungs as carbaminohaemoglobin and HCO;, reverse reaction forms CO2 O2 is metabolized to CO2, reaction with H2O to make H2CO3, HCO3 combines with imidazole side chain of haemoglobin, H2COs, Hb is carried back to the lungs, reverse reaction forms CO2 (a) (b) (c) reaction with H20 to make H2COs, dissociation to H and HCO;, HCO3 combines with imidazole side chain of haemoglobin, carried back to the lungs as HCO3 b and H , reverse reaction forms CO2 O2 is metabolized to CO2, reaction with H20 to make H2CO3, dissociation to H and HCO3, carried back to lungs in this form, reverse reaction forms CO2 (d) (e) reaction with H20 to make H2CO3, dissociation to H and HCO3, H combines with imidazole side chain of hemoglobin, carried back to lungs as carboxyhaemoglobin and HCO3, reverse reaction forms CO2 Which of the following does NOT happen during inspiration (a) the ribs move upward (b) the diaphragm lifts up (c) the antero-posterior dimensions of the chest are increased (d) the tranverse dimensions of the thorax are increased (e) the scalene and sternocleidomastoid muscles are recruited for inspiration Which of the following is FALSE concerning the ventilation and perfusion of different regions of the lung (a)alveoli at the top of the lung have a smaller dynamic compliance (b) the Hb moving through the base of the lung is less saturated than that at the apex of the lung PAO2 at the apex of the lung is higher than that at the base of the lung variation of the ventilation/perfusion ratio in the lungs only becomes significant when lung function begins to degrade regional variation in ventilation-perfusion is more efficient for oxygenating blood than is uniform ventilation-perfusion (c) (d) (e)Explanation / Answer
Which of the following is in the correct path of CO2 moving from the tissue to the atmosphere:
Answer- (e) Reaction with H2O to make H2CO3, dissociation to H+ and HCO3-, H+ combines with imidazole side chain of hemoglobin, carried back to lungs as carboxyhemoglobin and HCO3-, reverse reaction forms CO2.
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Which of the following does NOT happen during inspiration:
Answer- (b) the diaphragm lifts up.
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Which of the following is FALSE concerning the ventilation and perfusion of different regions of the lung:
Answer- (e) Regional variation in ventilation-perfusion is more efficient for oxygenating blood than is uniform ventilation-perfusion.
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