MHT CET 202623 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 23 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Breathing and Exchange of Gases
MHT CET 2026 · 23 April · Evening Shift · Biology · Breathing and Exchange of Gases
The partial pressure of oxygen of blood in pulmonary capillaries is...
The partial pressure of oxygen of blood in pulmonary capillaries is ----(i)---- mmHg while in alveolar air it is -------(ii)----- mmHg.
Options
- Ai - 40 ; ii- 104
- Bi - 45 ; ii- 40
- Ci - 90 ; ii - 105
- Di - 95 ; ii - 125
Correct answer
A. i - 40 ; ii- 104
Step-by-step solution
The partial pressure of oxygen (pO_2 mmHg.
The blood entering the pulmonary capillaries is deoxygenated blood, which has a of mmHg.
Due to this partial pressure gradient, oxygen diffuses from the alveoli into the blood in the pulmonary capillaries.
Thus, (i) is and (ii) is .
Answer: i - 40 ; ii- 104
The blood entering the pulmonary capillaries is deoxygenated blood, which has a of mmHg.
Due to this partial pressure gradient, oxygen diffuses from the alveoli into the blood in the pulmonary capillaries.
Thus, (i) is and (ii) is .
Answer: i - 40 ; ii- 104