Breathing And Exchange Of Gases Animal Respiration Question 3
Question: Arrange the given steps of respiration in the sequence of event they occur. Choose the correct options given below.
(i) Diffusion of gases, $ O_2 $ and $ CO_2 $ across the alveolar membrane.
(ii) Transport of gases by the blood.
(iii) Utilisation of $ O_2 $ by the cells for catabolic reactions and the resultant releases of $ CO_2 $ .
(iv) Pulmonary ventilation by which atmospheric air is drawn in and $ CO_2 $ rich alveolar air is expelled out.
(v) Diffusion of $ O_2 $ and $ CO_2 $ between the blood and tissue.
Options:
A) (iii), (v), (ii), (i), (iv)
B) (iii), (ii), (v), (i), (iv)
C) (v), (iv), (iii), (ii), (i)
D) (i), (ii), (iii), (iv), (v)
Show Answer
Answer:
Correct Answer: A
Solution:
Major steps involving respiration are Step 1: Utilisation of $ O_2 $ by cells in catabolic reactions.
Step 2: Diffusion of $ O_2 $ and $ CO_2 $ between blood and tissues.
Step 3: Transportation by blood.
Step 4: Diffusion of gases ( $ O_2 $ and $ CO_2 $ ) through alveolar membrane.
Step 5: $ CO_2 $ goes out and atmospheric air is drawn in.
BETA
