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CBSE Class 10 Answered

(a) Draw neat diagram of respiratory system and label the following parts. (i) Lungs(ii) Trachea(iii) Bronchus(iv) Diaphragm (b) Name the respiratory pigment in human beings and discuss its role. (c) Why is the rate of breathing in aquatic organisms much faster than that in terrestrial organisms?
Asked by Topperlearning User | 24 Jul, 2017, 04:31: PM
answered-by-expert Expert Answer

(a) Respiratory system :

 

 

(b) Hemoglobin.

Role of Hemoglobin à It is an iron-protein compound in red blood cells that gives blood its red color and transports oxygen, carbon dioxide.

(c) The rate of breathing in aquatic organisms is much faster than that in terrestrial organisms because the amount of dissolved oxygen in water is fairly low compared to the amount of oxygen in the air.

Answered by | 24 Jul, 2017, 06:31: PM

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