The percentage of O $_{2}$ present in inhaled air is about

21%

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

78%

No worries! We‘ve got your back. Try BYJU‘S free classes today!

43%

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 21%
Oxygen is a vital gas which is inhaled by the living organism for the oxidative breakdown of respiratory substrate to release energy. The percentage of oxygen in the inhaled air is 21%. Oxygen is inhaled due to the partial pressure gradient between the atmosphere and inside the body.
So, the correct answer is option A.

Suggest Corrections

Similar questions

O_{2}

The percentage of oxygen in inhaled air is 21%.

The percentage of oxygen in inhaled air is ___________.

What is the percentage of carbon dioxide in inhaled and exhaled air? [2 MARKS]

Join BYJU'S Learning Program