The diffusion of CO 2 across the alveolar membrane is 20 times faster than that of O 2 becauseA- CO 2 is actively transferred-B- The alveolar area available for CO 2 diffusion is larger-C- CO 2 is more soluble in H 2 O than O 2- which enables it to pass the membrance more readily-D- The CO 2 pressure gradient in larger-

The correct option is C CO2 is more soluble in H2O than O2, which enables it to pass the membrance more readily. CO2 is non polar so diffusion of CO2 across th ...

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Standard X

Biology

Diffusion

The diffusion...

Question

The diffusion of ${C O}_{2}$ across the alveolar membrane is 20 times faster than that of $O_{2}$ because

CO₂ is actively transferred.

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The alveolar area available for CO₂ diffusion is larger.

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CO₂ is more soluble in H₂O than O₂, which enables it to pass the membrance more readily.

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The CO₂ pressure gradient in larger.

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Solution

The correct option is C
CO₂ is more soluble in H₂O than O₂, which enables it to pass the membrance more readily.

CO₂ is non polar so diffusion of CO₂ across the alveolar membrane/lipid membrane is faster than that of O_2.

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Similar questions

The diffusion of ${C O}_{2}$ across the alveolar membrane is 20 times faster than that of $O_{2}$ because

Q. Assertion:

C O_{2}

diffuses only from tissue to alveoli and not in the reverse direction.
Reason:

C O_{2}

is 10 times more soluble than

O_{2}

For completion of respiration process, write the given steps in sequential manner.

(a) Diffusion of gases $(O_{2} a n d C O_{2})$ across alveolar membrane.

(b) Transport of gases by blood.

(d) Pulmonary ventilation by which atmospheric air is drawn in and $C O_{2}$ rich alveolar air is released out.

(e) Diffusion of $O_{2} a n d C O_{2}$ between blood and tissues.~

Q. Respiration involves following steps:
A. Diffusion of gases

O_{2}

and

{C O}_{2}

across alveolar membrane.
B. Transport of gases by blood.
C. Utilization of

O_{2}

by cell for catabolic reaction and resultant release of

O_{2}

.
D. Pulmonary ventilation by which atmospheric air is drawn in and

{C O}_{2}

rich air is released out.
E. Diffusion of

O_{2}

and

{C O}_{2}

between blood and tissue.

Q. Given below is a list of different steps (i-vi) involved in respiration.
(i) Utilisation of

O_{2}

by the cells for catabolic reactions
(ii) Transport of gases by the blood
(iii) Pulmonary ventilation by which atmospheric air is drawn in and

C O_{2}

is released out
(iv) Release of resultant

C O_{2}

(v) Diffusion of

O_{2}

and

C O_{2}

between blood and tissues
(vi) Diffusion of gases (

O_{2}

and

C O_{2}

) across alveolar tissues.
Select an option which has correct sequence of all the steps.

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The diffusion of CO2 across the alveolar membrane is 20 times faster than that of O2 because

The correct option is C CO2 is more soluble in H2O than O2, which enables it to pass the membrance more readily. CO2 is non polar so diffusion of CO2 across the alveolar membrane/lipid membrane is faster than that of O2.

The diffusion of ${C O}_{2}$ across the alveolar membrane is 20 times faster than that of $O_{2}$ because

The correct option is C
CO₂ is more soluble in H₂O than O₂, which enables it to pass the membrance more readily.

CO₂ is non polar so diffusion of CO₂ across the alveolar membrane/lipid membrane is faster than that of O_2.