Question # 1

In wood seems and roots the gaseous:

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lenticels

epidermal cells

somata

micropyle

Rate of breathing depends upon concentration of which gas:

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Glottis is a narrow opening at the floor of:

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Nasal cavity

Nostril

Pharynx

Antibiotics

The rate of breathing during exercise or other hard:= physical work is:

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10-20 times

20-30 times

30-40 times

40-50 times

The percentage of oxygen from air which we inspired is:

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15 %

21%

25%

28%

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

Point out the FALSE statement about respiration.

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Gases can easily pass through the walls of the alveoli

Gas exchange in lungs is very efficient because lungs provide large surface area

In emphysema, the walls of alveoli break and there is more surface area.

Dust particles can damage the lung by irritating the inner alveoli surface.

How many lobs are present in right lung?

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2

3

4

5

Which kind of blood vessels are present around the alveoli?

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Artery

Capillary

Arteriole

Veins

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 ,

In first stem of glycolysis glucose molecules breaks ans divide into two _______ molecules

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Citric acid

Lactic acid

Pyruvic acid

Formic acid

The respiratory centre is present in :

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Lungs

Brain

Nose

Muscles

Which diisease is caused by Streptococcus pneumoniae:

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Bronchites

Emphysema

Pneumonia

Asthema

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