Question # 1

When the "World no tobacco day" is celebrated?

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30 June

31 June

11 January

None of these

Where does the gaseous exchange occur in humans?

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Pharynx

Trachea

Bronchi

Alveoli

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

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Bronchites

Emphysema

Pneumonia

Asthema

It is also called sound box:

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trachea

larynx

pharynx

bronchus

What percentage of oxygen inhaled form air during breathing?

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21%

22%

23%

24%

Main role to give out air form lungs is;

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Bronchus

Bronchi

Bronchiote

Diaphragm

A thick muscular layer beneath lungs is called:

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Kidney

Diaphragm

Bladder

Ureter

The glottis is guarded by a flap of tissue called:

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Trachia

Glottis

Bronchi

Epiglottis

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

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Skin

Respiratory

Air passageway

Lungs

Total chemicals in tobacco smoke are:

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1000

2000

3000

4000

How many lobs are present in right lung?

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2

3

4

5

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.

C-Shaped cartilaginous rings are present in the wall of.

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Bronchi

Bronchioles

Alveoli

Trachea

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10th Class Biology Chapter 10 Gases Exchange English Medium KPK Boards Online Mcqs MCQs With Answers

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