Question # 1

The normal breathing rate in buman being is:

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10-40 times per minute

16-20 times per minute

30-40 times per minute

None of these

All the alveoli of one side unite to form:

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Lung

Kidney

Thorax

Chest Box

Lungs are enclosed in a membrane called;

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peritonium

pleural membrane

epidermis pericardium

The length of trachea is:

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10 cm

12 cm

22 cm

20 cm

Main role to give out air form lungs is;

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Bronchus

Bronchi

Bronchiote

Diaphragm

Where does the gaseous exchange occur in humans?

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Pharynx

Trachea

Bronchi

Alveoli

Most of the gaseous exchange in a leaf occurs through:

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Stomata

General surface

Cuticle

Lenticels

In man the system of gaseous exchange is:

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digestive system

respiratory system

nervous system

excretory system

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

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Emphysema

Pneumonia

Bronchitis

Asthma

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

Which bring deoxygenated blood form heart into lungs?

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Pulmonary veins

Pulmonary Artery

Aorta

Wind Pipe

For gaseous exchange the leaf and young stems have in their epidermis:

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Stomata

Lenticels

Companion cell

Guard cells

What happens during Exhalation?

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Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All 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.

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