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Byju's Answer

Standard IX

Biology

Respiration in Plants

Arrange the g...

Question

Arrange the given steps of respiration mechanism in the order they occur in the human body.
I. Breathing or pulmonary ventilation
II. Diffusion across the alveolar membrane
III. Transport of gases by blood
IV. Utilisation of $O_{2}$ by cells
V. Diffusion of $O_{2}$ and $C O_{2}$ between blood and tissues

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III

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III

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III

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III

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Solution

The correct option is B I $\to$ II $\to$ III $\to$ V $\to$ IV
Respiration involves the following steps:
(i) Breathing or pulmonary ventilation by which atmospheric air is drawn in and $C O_{2}$ rich alveolar air is released out.
(ii) Diffusion of gases $(O_{2}$ and $C O_{2})$ across the alveolar membrane.
(iii) Transport of gases by the blood.
(iv) Diffusion of $O_{2}$ and $C O_{2}$ between blood and tissues.
(v) The utilisation of $O_{2}$ by the cells for catabolic reactions and resultant release of $C O_{2}$ .

Hence, correct order is I $\to$ II $\to$ III $\to$ V $\to$ IV.

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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.~

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

O_{2}

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across alveolar membrane.
B. Transport of gases by blood.
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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}

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(iv) Release of resultant

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(v) Diffusion of

O_{2}

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

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Arrange the given steps of respiration mechanism in the order they occur in the human body. I. Breathing or pulmonary ventilation II. Diffusion across the alveolar membrane III. Transport of gases by blood IV. Utilisation of O2 by cells V. Diffusion of O2 and CO2 between blood and tissues