alleryAbout what percentage of exhaled air by volume is carbon dioxide?
A0.04%
B4% to 5%
C20% to 21%
D15% to 16%
Answer & Solution
Correct answer: B. 4% to 5%
Exhaled air carries about 4 to 5 per cent CO2, around a hundredfold more than inhaled air.
Keep practising Breathing and Exchange of Gases
Browse all Breathing and Exchange of Gases questions for NEET UG, or explore more Biology topics.
Related questions
Air at 33.7 kPa total pressure is 21% oxygen. What is its pO2?The high-affinity form of haemoglobin after the first O2 binds is the:Roughly how many times more readily does haemoglobin bind CO than O2?Compared with the adult curve, the fetal oxygen dissociation curve is:Fetal haemoglobin (HbF) is made of which globin chains?In which process is 2,3-BPG formed inside red blood cells?A rise in body temperature shifts the oxygen dissociation curve:Falling blood pH lowering haemoglobin's oxygen affinity is called the: