Question # 1

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears?

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Pneumonia

Asthma

Emphy sema

Bronchitis

The primary chemical stimulus for breathing is the concentration of.

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Carbon dioxide in blood.

Oxygen in blood

Carbon oxide in muscles

Oxygen in muscles.

In human which process occurs in alveoli?

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Tranport

Nutition

Gaseous Exchange

Reproduction

In man the correct passage of air is:

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nostrils, nasal, cavit, pharynx, trachea, arynxl, bronchi, bronchioles alveolar,duct, aleoli

nostrils, nasal cavity, Pharynx, larynx , bronchi, trachea , bronchioles , alveolar duct, alveoli

Notrils , nasal, cavity, larynx, pharynx, trachea,bronchioles, alveolar, duct alveoli,

Nasal cavity, nostrils, larynx, pharynx, alveoli , trachea bronchi, bronchioles ,alveolar dict ,

The major cause of lungs cancer is:

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nicotine

smoking

viral infection

radiation

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

Smoking may also lead to the cancers in:

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Kidneys and pancreas

Oral cavity and larynx

Breast and bladder

All of them

The inflamation of bronchi or bronchioles is caled:

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Bronchites

Emphysema

Pneumonia

Chest box

In which of the following gaseous exchange occur through stomata?

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The leaves and young stems

Wood stems and nature roots.

Young roots

The aquatic plants

What percentage of oxygen inhaled form air during breathing?

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21%

22%

23%

24%

Rate of breathing depends upon concentration of which gas:

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Gaseous Exchange in cow takes in:

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Bronchi

Tranchea

Pharynx

Alveoli

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.

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