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MHT CET Medical202625 April 2026Evening ShiftBiologyBreathing and Exchange of GasesActual

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 CO ₂ transported by the plasma in dissolved form is about 3 % . In the light of above statements, select the correct option given below:

Options

  1. ABoth statement I and statement II are correct
  2. BBoth statement I and statement II are incorrect
  3. CStatement I is correct but statement II is incorrect
  4. DStatement I is incorrect but statement II is correct

Correct answer

B. Both statement I and statement II are incorrect

Step-by-step solution

According to the standard data for transport of gases in human blood: About 97 % of O ₂ is transported by RBCs in the blood, and the remaining 3 % of O ₂ is carried in a dissolved state through the plasma. Therefore, Statement I is incorrect. Nearly 20-25 % of CO ₂ is transported by RBCs, about 70 % is carried as bicarbonate, and about 7 % of 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 a

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