Read the given statements and select the correct option. Statement 1: About 70 % of CO2 that enters RBCs changes into HCO-3 for transport in plasma to the lungs where it reconverts into CO2 for elimination. Statement 2: About 40 % of CO2 that enters RBCs changes into carbaminohaemoglobin which releases O2 in the lungs.

Question

Read the given statements and select the correct option. Statement 1: About 70 % of CO2 that enters RBCs changes into HCO-3 for transport in plasma to the lungs where it reconverts into CO2 for elimination. Statement 2: About 40 % of CO2 that enters RBCs changes into carbaminohaemoglobin which releases O2 in the lungs. (A) Both statements 1 and 2 are correct (B) Statement 1 is correct but statement 2 is incorrect (C) Statement 1 is incorrect but statement 2 is correct (D) Both statements 1 and 2 are incorrect

Tardigrade Admin · Accepted Answer

About 20-25 % of CO2 is carried by Hb as carbamino-haemoglobin. CO2 reacts directly with amine radicals (NH2) of Hb to form an unstable compound called carbaminohaemoglobin which releases CO2 in the lungs.

Both statements 1 and 2 are correct

Statement 1 is correct but statement 2 is incorrect

Statement 1 is incorrect but statement 2 is correct

Both statements 1 and 2 are incorrect

About 20−25% of CO2​ is carried by Hb as carbamino-haemoglobin. CO2​ reacts directly with amine radicals (NH2​) of Hb to form an unstable compound called carbaminohaemoglobin which releases CO2​ in the lungs.

About $20 - 25%$ of $C O_{2}$ is carried by $H b$ as carbamino-haemoglobin. $C O_{2}$ reacts directly with amine radicals $(N H_{2})$ of $H b$ to form an unstable compound called carbaminohaemoglobin which releases $C O_{2}$ in the lungs.