BIO XI 5.2

BIO XI 5.2

CHAPTER 17. BREATHING & EXCHANGE OF GASES

 

1. Define respiration.

2. Draw a well labeled diagram of human respiratory system.

3. How does the following organisms respire

(a) eartworm (b) aquatic arthropods (c) terrestrial vertebrates

4. What are the various steps involved in respiration?

5. Explain the mechanism of breathing.

6. Define the following.

(a) tidal volume (b)Inspiratory reserve volume (c) Expiratiory reserve volume

(d) Residual volume (e) Inspiratory capacity (f) Expiratory capacity (g) Functional

residual capacity Vital capacity (i) Total lung capacity

7. Explain the mechanism of exchange of gases.

8. Explain how O2 & CO2 is transported?

9. Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal

pattern?

10. How is respiration regulated?

11. Write a note on Asthma, Emphysema & occupational disorders.