Respiratory system questions

1. Respiratory systemis derived from 
a. Endoderm 
b. Mesoderm 
c. Ectoderm 
d. None of the above
 
Ans----> a

2. Number of lobes in right and left lungs of rabbit are: 
a. 2,4 
b. 3,2 
c. 4,2 
d. 6,3
 
Ans----> c

3. Pleura is double membrane sac which envelops: 
a. Kidneys 
b. Brain 
c. Lungs 
d. Nasal passage
 
Ans----> c

4. Sites of gaseous exchange on lungs are: 
a. Tracheioles 
b. Alveoli 
c. Bronchioles 
d. Pulmonary chambers
 
Ans----> b

5. Book lungs are respiratory organs in : 
a. Scorpion 
b. Prawn 
c. Snail 
d. Cockroach
 
Ans----> a

6. The number of lobes in the right lung of rabbit is: 
a. Two 
b. Three 
c. Four 
d. Five
 
Ans----> c

7. Larynx of rabbit acts as a: 
a. Sound box 
b. Valve for controlling air 
c. Organ producing sound 
d. All of the above
 
Ans----> d

8. During hibernation frog respires: 
a. Only by lungs 
b. Only by mouth 
c. Only by skin 
d. By skin and lungs
 
Ans----> c

9. The mode of respiration in rabbit is: 
a. Cutaneous 
b. Mucosal 
c. Tracheal 
d. Pulmonary
 
Ans----> d

10. The total number of lobes in both lungs of rabbit is : 
a. Four 
b. Six 
c. Two 
d. Eight
 
Ans----> b

11. Which of the following organisms has no specialized respiratory organs? 
a. Tadpole of frog 
b. Cockroach 
c. Earthworm 
d. Mosquito larva
 
Ans----> c

12. Which of the following animals possess non-elastic lungs with elastic air sacs connected to them ? 
a. Reptiles 
b. Birds 
c. Amphibians 
d. Mammals
 
Ans----> b

13. The number of lobes on the right and left lungs of man respectively are: 
a. 2 and 3 
b. 3 and 2 
c. 4 and 2 
d. 2 and 4
 
Ans----> b

14. Which of the following tissues requires more oxygen ? 
a. Skin 
b. Brain 
c. Bone 
d. Intestine
  
Ans----> b

15. Faster breathing in high fever is due to : 
a. Additional requirement of oxygen for the invader germs 
b. High temperature of the body 
c. Mental worry of patient 
d. Loss of appetite
 
Ans----> b

16. The form of energy used in respiration is : 
a. Chemical 
b. Electrical 
c. Mechanical 
d. Radiant
  
Ans----> a

17. Blood entering the lung is rich in : 
a. Oxygen 
b. Carbon dioxide 
c. Urea 
d. More RBCs
 
Ans----> b

18. The breathing rate in a child is: 
a. Same as in an adult man 
b. Less than in an adult man 
c. More than in an adult man 
d. None of the above
 
Ans----> c

19. The oxygen concentration of expired air is about: 
a. 4% 
b. 10% 
c. 16% 
d. 20%
 
Ans----> c

20. Percentage of oxygen supplied by haemoglobin is : 
a. 97% 
b. 100% 
c. 49% 
d. 3%
Ans----> a


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