1.

What is the concentration of oxygen in expired air?(a) 19%(b) 4%(c) 10%(d) 16%This question was posed to me in an online quiz.I need to ask this question from Exchange of Gases in portion Breathing and Exchange of Gases of Biology – Class 11

Answer»

Right OPTION is (d) 16%

The explanation: INSPIRED air contains 19.6% oxygen and expired air has 15.7% oxygen. So approximately 4% oxygen goes to blood from air. In the same way inspired air contains CARBON dioxide 0.04% and expired air has 3.6% carbon dioxide so approximately 3.56% carbon dioxide goes to air from blood.



Discussion

No Comment Found

Related InterviewSolutions