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Byju's Answer

Standard VI

Biology

Inhalation and Exhalation

Given below i...

Question

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.

(iii), (vi), (ii), (v), (i), (iv)

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(iii), (vi), (i), (v), (ii), (iv)

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(iv), (ii), (v), (iii), (i), (vi)

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(iv), (vi), (ii), (v), (i), (iii)

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Solution

The correct option is A (iii), (vi), (ii), (v), (i), (iv)
During respiration atmospheric air is drawn in and carbon dioxide is released , diffusion of gases takes place in the alveolar tissue which is then carried by blood, then diffusion of gases take place between blood and tissues, oxygen is utilized by cells for catabolic reactions, and the resultant carbon dioxide is released from the body.
So, the correct option is '(iii), (vi), (ii), (v), (i), (iv)'.

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Similar questions

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}

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(v) Diffusion of

O_{2}

and

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(vi) Diffusion of gases (

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Select an option that has the correct sequence of all the steps.

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(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.~

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