(C) The amount of $CO_{2}$ in expired (exhaled) air is approximately $4.4 \%$.Atmospheric air (inhaled air) contains about $0.04 \%$ $CO_{2}$.Exhaled

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(C) The amount of $CO_{2}$ in expired (exhaled) air is approximately $4.4 \%$.Atmospheric air (inhaled air) contains about $0.04 \%$ $CO_{2}$.Exhaled air contains about $4 \%$ to $4.5 \%$ $CO_{2}$.Therefore,exhaled air contains approximately $100$ times the concentration of $CO_{2}$ compared to inhaled air.

Class 11 Biology Breathing and Exchange of Gases Exchange of gases

Easy

Amount of $CO_{2}$ in expired air is about (in $\%$)

A
$0.04$
B
$0.03$
C
$4.5$
D
$2.1$

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Breathing and Exchange of Gases

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Exchange of gases

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Amount of $CO_{2}$ in expired air is about (in $\%$)

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What is the value of $pCO_2$ in atmospheric air,alveoli,and tissues respectively?

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