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Standard XII

Biology

Respiration

The process b...

Question

The process by which $O_{2}$ rich atmospheric air is drawn in and ${CO}_{2}$ rich alveolar air is released out is

Both

A

and

B

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Pulmonary ventilation

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Breathing

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Cellular respiration

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Solution

The correct option is A Both $A$ and $B$
Breathing or pulmonary ventilation

Breathing or pulmonary ventilation refers to the exchange of gases between the atmosphere and our body. The mechanism of breathing includes two stages:

Inspiration - where oxygen rich air enters the lungs and hence the alveoli.

Expiration- where alveoli air rich in carbon dioxide leaves the lungs.

Final answer
D. Both $A$ and $B$

Suggest Corrections

Similar questions

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.

Q. The process of taking in oxygen rich air is whereas process of giving out carbon dioxide rich air is .

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) Released 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 that has the correct sequence of all the steps.

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Respiration

Standard XII Biology

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The process by which O2 rich atmospheric air is drawn in and CO2 rich alveolar air is released out is

The process by which $O_{2}$ rich atmospheric air is drawn in and ${CO}_{2}$ rich alveolar air is released out is