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Chapter 35. Gas Transport & pH
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Most of the CO2 transported in the blood is
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B. in carbamino compounds formed from plasma proteins.
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C. in carbamino compounds formed from hemoglobin.
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Which of the following has the greatest effect on the ability of blood to transport oxygen?
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A. Capacity of the blood to dissolve oxygen
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B. Amount of hemoglobin in the blood
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D. CO2 content of red blood cells
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E. Temperature of the blood
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Which of the following is true of the system?
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A. Reaction 2 is catalyzed by carbonic anhydrase.
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B. Because of reaction 2, the pH of blood declines during hyperventilation.
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C. Reaction 1 occurs in the red blood cell.
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D. Reaction 1 occurs primarily in plasma.
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E. The reactions move to the right when there is excess H+ in the tissues.
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In comparing uncompensated respiratory acidosis and uncompensated metabolic acidosis which one of the following is true?
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A. Plasma pH change is always greater in uncompensated respiratory acidosis compared to uncompensated metabolic acidosis.
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B. There are no compensation mechanisms for respiratory acidosis, whereas there is respiratory compensation for metabolic acidosis.
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C. Uncompensated respiratory acidosis involves changes in plasma [HCO3−], whereas plasma [HCO3−] is unchanged in uncompensated metabolic acidosis.
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D. Uncompensated respiratory acidosis is associated with a change in Pco2, whereas in uncompensated metabolic acidosis Pco2 is constant.