PART - 2 - Unit V : CH - 14 Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

$\begin{array}{|p{0.6\linewidth}|p{0.3\linewidth}|} \hline Column\,\,I  & Column\,\,II \\ \hline a.\,\,Cellular\,\,level\,\,of\,\,organisation & 1.\,\,Cnidarians \\ \hline b.\,\,Organ\,\,level\,\,of\,\,organisation  & 2.\,\,Platyhelminthes \\ \hline c.\,\,Organ\,\,system\,\,level\,\,of\,\,organisation & 3.\,\,Chordates \\ \hline d.\,\,Tissue\,\,level\,\,organisation & 4.\,\,Porifera \\ \hline \end{array}$

$a\ \ b\ \ c\ \ d$

$I.$ Oxygen is carried by haemoglobin

$II.$ Oxygen is carried by carbonic anhydrase

$III.$ $C O_{2}$ is carried by haemoglobin

$IV.$ $SO _{2}$ is carried by haemoglobin

$V.$ Only oxygen is transported by the blood

$VI.$ Only $C O_{2}$ is transported by the blood

Choose the correct option