BREATHING AND EXCHANGE OF GASES Set 3

1.

Conducting part of the respiratory system comprises

External nostrils upto the terminal bronchioles Internal nostrils upto trachea Epiglottis upto trachea Larynx upto bronchi NULL NULL NULL

2.

Arrange the given steps of respiration mechanism in the order, they occur in the human body
I. Breathing or pulmonary ventilation
II. Diffusion across the alveolar membrane
III. Transport of gases by blood
IV. Utilisation of

by cells
V. Diffusion of

and

between blood and tissues
Choose the correct option

I

II

III

IV

V I

II

III

V

IV I

III

II

V

IV I

III

II

IV

V NULL NULL NULL

3.

How many layers are present in the diffusion membrane of alveolus capillary?

5 3 2 4 NULL NULL NULL

4.

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?

Carbon disulphide the patient has been inhaling polluted air containing usually high content of Chloroform the patient has been inhaling polluted air containing usually high content of Carbon dioxide the patient has been inhaling polluted air containing usually high content of Carbon monoxide the patient has been inhaling polluted air containing usually high content of NULL NULL NULL

5.

What happens in Hamburger shift?