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 $C{O}_2$. 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 $C{O}_2$ is transported by $RBCs$ whereas $70\%$ of it is carried as bicarbonate. About $7\%$ of $C{O}_2$ is carried in a dissolved state through plasma.