Q23 / 200 · MHT CET - Medical 2026 (25 April Shift 2) · Biology

Given below are two statements:
Statement I - The oxygen transported in dissolved state by the plasma in human beings is about $10\%$.
Statement II - The $\text{CO}_2$ transported by the plasma in dissolved form is about $3\%$.
In the light of above statements, select the correct option given below:

  • A
    Both statement I and statement II are correct
  • Correct answer
    B
    Both statement I and statement II are incorrect
  • C
    Statement I is correct but statement II is incorrect
  • D
    Statement I is incorrect but statement II is correct

Solution

According to the standard data for transport of gases in human blood:

About $97\%$ of $\text{O}_2$ is transported by RBCs in the blood, and the remaining $3\%$ of $\text{O}_2$ is carried in a dissolved state through the plasma. Therefore, Statement I is incorrect.

Nearly $20-25\%$ of $\text{CO}_2$ is transported by RBCs, about $70\%$ is carried as bicarbonate, and about $7\%$ of $\text{CO}_2$ is carried in a dissolved state through the plasma. Therefore, Statement II is also incorrect.

Both Statement I and Statement II are incorrect.

Answer: Both statement I and statement II are incorrect

Hence, the correct answer is option: 'B'.

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