Question # 1

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

Power of speaking is only gifted to:

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Human being

Monkey

Parrot

Crow

Where does the gaseous exchange occur in humans:

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Pharynx

Larynx

Trachea

Epiglottis

What happens during Exhalation?

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Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All of these

The percentage of oxygen from air which we inspired is:

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15 %

21%

25%

28%

In human which process occurs in alveoli?

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Tranport

Nutition

Gaseous Exchange

Reproduction

Which disease is involved in the breakdown of air sacs of the lungs?

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Bronchites

Emphysema

Pneumonia

Asthema

When the "World no tobacco day" is celebrated?

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30 June

31 June

11 January

None of these

Rate of breathing depends upon concentration of which gas:

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Total chemicals in tobacco smoke are:

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1000

2000

3000

4000

How many bronchi are there in the air passageway?

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One

Two

Many

None of these

The process of gaseous exchange involves.

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Break down of C-H bounds to yield energy.

Physical movements that take air ain and our of body

Getting oxygen from the air and removing carbon dioxide

Transport of oxygen by the blood to different parts of the body.

How many pairs of ribs in humans?

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12

24

26

30

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