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Which is the correct sequence of steps i...

Which is the correct sequence of steps in respiration?
a. Transport of gases by the blood
b. Breathing or pulmonary ventilation
c. Cellular respiration
d. Diffusion of `O_(2)" and CO_(2)` between blood and tissues
e . Diffusion of =`O_(2)" and "CO_(2)` across alveolar membrane

A

`btoetoatodtoc`

B

`btoatoetoctod`

C

`btodtoatoetoc`

D

`btoetodtoatoc`

Text Solution

Verified by Experts

The correct Answer is:
A
Respiration involves the following steps :
(i) Breathing or pulmonary ventilation by which atmospheric air is drawn in and `CO_(2)` rich alveolar air is released out.
(ii) Diffusion of gases `(O_(2)" and "CO_(2))` across alveolar membrane.
(iii) Transport of gases by the blood.
(iv) Diffusion of `O_(2)" and "CO_(2)` between blood and tissues.
(v) Utilisation of `O_(2)` by the cells for catabolic reactions and resultant release of `CO_(2)` (cellular respiration).
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