Question

What is the normal percentage composition of gases in inspired air and expired air respectively?

Concise Biology Class IX By H.S. Vishnoi CHAPTER 16-THE RESPIRATORY SYSTEM

Answer 1

Answer:

in order to balance the exchange of gases

Explanation:

our body needs only oxygen nor carbon dioxide so equal amount of those gases will applied to give o2 and take back co2

Answer 2

Hey Dear,

# Exchange of gases -

• During respiration, some of oxygen is converted to carbon dioxide.
• Hence, expired air has more percentage of carbon dioxide and less of oxygen as compared to inspired air.
• Percentage of nitrogen is well maintained during exchange.

◆ Inspired air -

Composition of inspired air is as follows -

• Nitrogen => 79 %
• Oxygen => 21 %
• Carbon dioxide => 0.04 %

◆ Expired air -

Composition of expired air is as follows -

• Nitrogen => 80 %
• Oxygen => 16 %
• Carbon dioxide => 4 %

Hope this helped you...