Question

Arrange the following steps of the respiration process in correct sequence.
1.Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out.
2.Diffusion of gases (O2 and CO2 )across alveolar membrane.
3.Transport of gases by the blood.
4.Diffusion of O2 and CO2 between blood and tissues.
5.Utilization of O2 by the cells for catabolic reactions and resultant release of CO2​

Answer 1

Answer:

Explanation:

Respiration involves the following steps:

(i) Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out.

(ii) Diffusion of gases (O2 and CO2) across the alveolar membrane.

(iii) Transport of gases by the blood.

(iv) Diffusion of O2 and CO2 between blood and tissues.

(v) The utilisation of O2 by the cells for catabolic reactions and resultant release of CO2.  

Hence, Respiration involves the following steps above.