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Which of the following statement is corr...

Which of the following statement is correct about alveoli?

A

(1) alveoli are primary sites for gaseous exchange

B

(2) its walls are one celled thick

C

(3) partial pressure of oxygen in alveoli is 104 mm Hg

D

(4) all of the above

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The correct Answer is:
D
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ALLEN-BIOLOGY AT A GLANCE (ZOOLOGY )-EXERCISE
  1. In which of the following respiratory volume is correctly match with t...

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  2. (A) inspiratory capacity (B) expiratory capacity (C) functional ...

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  3. Which of the following statement is correct about alveoli?

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  4. How much oxygen is normally delivered by 100 ml of oxygenated blood to...

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  5. Consider the given statements and select correct statement for transpo...

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  6. Pneumotaxic center is found in

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  7. A chronic disorder in which alveolar walls are damaged is

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  8. Respiration is the physilogical process in which

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  9. The primary role of oxygen in body is to

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  10. Neither the trachea nor the bronchi contain.

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  11. when 1200 ml air is left in the lungs , it is called

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  12. Asthma' is due to

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  13. Oxy-haemoglobin dissociates into oxygen and deoxy-haemoglobin at

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  14. At which level does trachea divide into two primary bronchi in humans?...

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  15. Which of the following structure is present inside the larynx of the ...

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  16. If a large number of people are enclosed in a room then

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  17. Which of the following respiratory volume has the volume of 1100 mL to...

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  18. How many layers are present in the diffusion membrane of alveolar capi...

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  19. Shifting of the curve to right takes place in the case of ltimg src="h...

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  20. The mucus produced by the goblet cells (a) moistens the incoming ai...

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