Question

$C{O}_2$ dissociates from carbamino haemoglobin when

• A. p$C{O}_2$ is high and P$O_2$ is low
• B. p$O_2$ is high and P$C{O}_2$ is low
• C. p$C{O}_2$ and P$O_2$ are equal
• D. none of the above.

Answer 1

Answer: (B)

p$O_2$ is high and P$C{O}_2$ is low

High P$O_2$ and low P$C{O}_2$ in the lung blood capillaries favours separation of $C{O}_2$ from carbaminohaemoglobin.