Choose the wrong statement.

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(D) Respiratory pigments are specialized molecules that facilitate the transport of respiratory gases like $O_2$ and $CO_2$ in the blood.$1$. They are

Vedclass · Accepted Answer

None of the above.

Vedclass · Answer

(D) Respiratory pigments are specialized molecules that facilitate the transport of respiratory gases like $O_2$ and $CO_2$ in the blood.$1$. They are indeed coloured pigments (e.g.,hemoglobin is red).$2$. They possess a high affinity for binding with respiratory gases.$3$. They are conjugated proteins containing a metal ion (e.g.,$Fe^{2+}$ in hemoglobin,$Cu^{2+}$ in hemocyanin).Since all the provided statements ($A$,$B$,and $C$) are scientifically correct,the correct choice is $D$.

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