Question

Refer to the given diagrammatic representation of the transportation of oxygen and carbon dioxide in the blood. $P$, $Q$, $R$, $S$ and $T$ represent percentage of both gases in different forms. Select the correct option for $P-T$.

$\,\,\,$	P$\,\,\,$	Q$\,\,\,$	R$\,\,\,$	S$\,\,\,$	T$\,\,\,$
(a)$\,\,\,$	23%$\,\,\,$	70%$\,\,\,$	7%$\,\,\,$	93%$\,\,\,$	7%$\,\,\,$
(b)	7%$\,\,\,$	23%$\,\,\,$	70%$\,\,\,$	3%$\,\,\,$	97%$\,\,\,$
(c)	7%$\,\,\,$	23%$\,\,\,$	70%$\,\,\,$	97%$\,\,\,$	3%$\,\,\,$
(d)	70%$\,\,\,$	7%$\,\,\,$	23%$\,\,\,$	97%$\,\,\,$	3%$\,\,\,$

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (B)

Blood is the medium of transport for $O_2$ and $CO_2$. About $97\%$ of $O_2$ is transported by $RBCs$ in the blood. The remaining $3\%$ of $O_2$ is carried in a dissolved state through the plasma. Nearly $20-25\%$ of $CO_2$ is transported by $RBCs$ whereas $70\%$ of it is carried as bicarbonate. About $7\%$ of $CO_2$ is carried in a dissolved state through plasma.