Which of these statements applies to the following reaction: Prot-NH2 + CO2 Prot-NHCOO– + H+?
a. Approximately 20% of the total blood carbon dioxide is carried in this form.
b. It is second in importance to only the bi-carbonate buffer system.
c. It represents the formation of blood car-bamino compounds.
d. The resulting H+ ions are buffered by re-duced HCO3.
ANS: C
A small amount of the carbon dioxide leaving the tissues combines with plasma proteins to form these carbamino compounds.
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