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Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 5 (25 MCQs)

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1. The partial pressure of oxygen and the partial pressure of carbon dioxide is identical in
2. In breathing movements, air volume can be estimated by
3. Which of the following factors is not favourable for the formation of oxyhaemoglobin?
4. A unique feature common to the alveoli of lungs and the villi of the intestine is that both
5. In humans, which of the following is not a step in respiration?
6. Inspiratory Capacity is
7. When the volume of the thorax increases, .....
8. The hemoglobin of a human foetus
9. The breathing centre initiates ventilation in response to-
10. Vital capacity and Residual volume of an athlete 4600 ml and 1200 ml respectively. What will be his Total Lung capacity if his Expiratory reserve volume is 1100 ml?
11. Which part of the respiratory system is responsible for gas exchange?
12. Pressure within lungs is called:
13. An oxygen dissociation curve will shift to the right in what condition describe below.
14. Most abundant cartilage of larynx:
15. When diaphragm is pushed up, process occurs is .....
16. These are the small units of lungs where the actual exchange of gases takes place.
17. Alveoli have a good blood supply to maintain the concentration gradients of oxygen and carbon dioxide.
18. When breathing process is slow?
19. There are two statements Statement 1:Carbonic anhydrase is present in erythrocytesStatement 2:In erythrocytes, CO2 combines with H2O and is transported
20. The patient has been inhaling polluted air containing unusally high content of
21. Mammalian lungs have an enormous number of minute alveoli (air sacs). This is toallow
22. CO$_{2}$ is transported-
23. Which structure prevents food from entering the trachea during swallowing?
24. What structure do RBCs move through single file?
25. Statements1) Carbonic anhydrase is present in the erythrocytes.2) In erythrocytes the carbon dioxide combine with water and is transported.
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