Question # 1

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

In human which process occurs in alveoli?

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Tranport

Nutition

Gaseous Exchange

Reproduction

During exercise or other hard physical works the breathing rate may increase up to.

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30-40 times per minute

50-60 times per minute

60-70 times per minute

70-80 times per minute

Glottis is a narrow opening at the floor of:

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Nasal cavity

Nostril

Pharynx

Antibiotics

The uncontrolled cell divisions in lungs tissue is called:

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bronchitis

emphysema

cancer

Asthma

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

Cartilage is absent in:

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larynx

trachea

bronchi

bronchioles

The respiratory disease that is the destruction of the walls of Alveoli is;

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Asthma

Pneumonia

Emphysema

Bronchitis

How many bronchi are there in the air passageway?

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One

Two

Many

None of these

Power of speaking is only gifted to:

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Human being

Monkey

Parrot

Crow

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

Most of the gaseous exchange in a leaf occurs through.

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Stomata

General surface

Cuticle

lenticels

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