Question # 1

Cutting of walls of Alveoli called:

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Pneumonia

Emphysema

Bronchtis

Asthama

Glottis is a narrow opening at the floor of:

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Nasal cavity

Nostril

Pharynx

Antibiotics

A cough, mild wheezing, fever chills and shortness of breath are symptoms of:

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Emphysema

Pneumonia

Bronchitis

Asthma

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

No. of bronchi in the air passage way are:

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1

2

3

4

The percentage of oxygen from air which we inspired is:

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15 %

21%

25%

28%

In human and other higher animals, the exchange of gases is carried out by:

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Skin

Respiratory

Air passageway

Lungs

Which gas us absorbed through stomata of plant during night?

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Carbon dioxide

Oxygen

Nitrigen

Hydrogen

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

Cartilage is absent in:

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larynx

trachea

bronchi

bronchioles

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

How many pairs of ribs in humans?

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12

24

26

30

How many bronchi are there in the air passageway?

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One

Two

Many

None of these

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Biology 10th Class English Medium Chapter 1 Online Test MCQs With Answers

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