Home Biology Breathing and Exchange of Gases Disorder of Respiratory System and Regulation of Respiration Which of following option is not true?
Biology Breathing and Exchange of Gases Disorder of Respiratory System and Regulation of Respiration Single Correct MCQ
Published on: August 13, 2026

Which of following option is not true?

A
The partial pressure of oxygen in deoxygenated blood is 40 mm Hg
B
The partial pressure of oxygen in oxygenated blood is 95 mm Hg
C
The partial pressure of oxygen in alveolar air is 104 mm Hg
D
The partial pressure of CO2 in atmospheric air is 40 mm Hg

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