Question # 1

Oxygen content of fresh air are

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200 ml/litre

10 ml/ litre

100 ml / litre

150 ml / litre

Blood is not involved in transport of gasses in.

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Frog

Man

Earthworm

Cockroach

Myoglobin occurs in

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Red blood cells

White blood cells

Plasma

Muscle fibres

Water is more viscous than air.

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10 times

20 times

50 times

100 times

During exercise the breathing rate may rise to

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30 times per minute

20 times per minute

25 times per minute

35 times per minute

More than ten compounds of tar of tobacco smoke are included in causing.

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Cancer

Asthma

Emphysema

Tuberculosis

The respiratory system is most efficient in ______

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Man

Bird

Fish

Snake

During photorespiration, glycolate diffuses in to the membrane bounded organelle named as

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Mitochondria

Ribosome

Peroxisome

Golgi bodies

The irritant substances of smoke generally cause

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Smoker's hiccough

Smoker's sneeze

Smoker's yawing

Smoker's cough

Respiratory organs in fish are

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Lungs

Gills

Skin

Fins

Respiratory pigment present in muscles is called ______

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Myoglobin

Globin

Haemoglobin

Haemocyanin

Emphysema is the breakdown of

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Trachea

Bronchi

Alveoli

Bronchioles

The exchange of gases between the organism and its environment is called.

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Respiration

External respiration

Cellular respiration

Anaerobic respiration

All are made up of cartilage except

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Trachea

Bronchiole

Larynx

Bronchi

How much air lungs can hold when they are futy inflated.

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5 liters

4.5 liters

4 liters

3.5 liters

When blood leaves the capillary bed most of the carbon dioxide is in the form of

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Carbonate ions

Bicarbonate ions

Hydrogen ions

Hydroxyl ions

100 ml of arterial blood of human being contains CO2

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50 ml

54 ml

56 ml

58 ml

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