Under normal conditions,what amount of $O_{2}$ is delivered to the tissues by $100\; mL$ of oxygenated blood (in $; mL$)?

What percentage of $CO_2$ is transported in the form of bicarbonate in the blood (in $\%$)?

$CO_{2}$ diffuses into ...$A$... and forms $HCO_{3}^{-}$ and $H^{+}$. At the ...$B$... site where $pCO_{2}$ is low, the reaction proceeds in the opposite direction.
Thus, $CO_{2}$ is trapped as ...$C$... at the tissue level and transported to alveoli is released out as ...$D$...
Select the right choice for $A, B, C$ and $D$ to complete the given $NCERT$ statement.

How many oxygen molecules can one hemoglobin molecule carry?

If the concentration of $CO_2$ is higher,the oxygen dissociation curve will shift towards:

The dissociation curve of haemoglobin is: