You visited us 1 times! Enjoying our articles? Unlock Full Access!

Expiration

Read the foll...

Question

Read the following sentences carefully and select the incorrect one.

During expiration,

p O_{2}

of expired air is more than alveolar air but less than atmospheric air

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

During expiration,

p O_{2}

of expired air is less than

p C O_{2}

of alveolar air but more than

p C O_{2}

of atmospheric air

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

Sum of partial pressure of all gases at sea level is

760 m m H g

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

The partial pressure of

O_{2}

and

C O_{2}

$ in the systemic veins is same as that in pulomonary vein.

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

Open in App

Solution

The correct option is A During expiration, $p O_{2}$ of expired air is more than alveolar air but less than atmospheric air
Sum of the partial pressure of all gases is 760 mm of Hg.
The partial pressure of oxygen and carbon dioxide is same in systematic vein since they are continuous.
During expiration, $p O_{2}$ of experience air is less than $p C O_{2}$ of alveolar air but less than atmospheric air as the atmosphere has a high concentration of oxygen.
During expiration, $p O_{2}$ of expired air is less than alveolar air and atmospheric air.
So the correct answer is 'During expiration $p O_{2}$ of expired air is more than alveolar air but less than atmospheric air'.

Suggest Corrections

Similar questions

p O_{2}

p C O_{2}

p O_{2}

p C O_{2}

p O_{2}

p C O_{2}

p O_{2}

p C O_{2}

p O_{2}

p C O_{2}

What will be the $p O_{2}$ and $p C O 2$ in the atmospheric air compared to those in the alveolar air?

p O_{2}

p C O_{2}

C O_{2}

$C O_{2}$ dissociates from carbamino haemoglobin when

(a) $p C O_{2}$ is high and $p O_{2}$ is low

(b) $p O_{2}$ is high and $p C O_{2}$ is low

(d) None of the above

Join BYJU'S Learning Program