How much higher is the affinity of carbon monoxide for hemoglobin compared to oxygen (in $\times$)?

What is the percentage of $O_2$ transported in dissolved form through the plasma?

What should be the nature of blood for the efficient transport of $O_2$ and $CO_2$?

Identify enzymes $A$ and $B.$
$CO_2 + H_2O \rightleftharpoons H_2CO_3 \rightleftharpoons HCO_3^- + H^+$

What percentage of $O_2$ is transported by hemoglobin (in $\%$)?

With reference to the oxyhaemoglobin dissociation curve,select the $INCORRECT$ statement/statements.
$I$. $100\%$ saturation is very common.
$II$. $95-97\%$ saturation takes place at $ppO_2 = 100 \text{ mm Hg}$ in alveoli.
$III$. At $30 \text{ mm Hg}$ of $ppO_2$,only $50\%$ saturation can be maintained.
$IV$. The oxyhaemoglobin dissociation curve is $J$-shaped.
Select the correct option.