Question # 1

Why hemoglobin is 98% saturated, the oxygen content per 100 ml of blood is.

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19.6 ml

18.6 ml

17.6 ml

16.6 ml

Which is correct order of parts of air passage ways in man.

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Nostrils, Nasal cavity, Pharynx, Larynx

Nasal cavity, Nostrils, Pharynx, Larynx

Nasal cavity, Pharynx, Nostrils, Larynx

Nostrils, Pharynx, Larynx, Nasal cavity

Blood contains ______ oxygen per 100 ml of blood when haemoglobin is 98% saturated

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19.6 ml

18.6 ml

16.6 ml

17.6 ml

Air spaces between mesophyll cells of a leaf comprise ______ of the total volume

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20%

30%

40%

50%

Which one is the structure of respiratory system of man.

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Larynx

Syrinx

Esophagus

duodenum

_____ is more important regulator of breathing process.

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Oxygen

Carbon di oxide

Myoglobin

Hemoglobin

Carbon di oxide per 100 ml of venous blood is.

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50 ml

54 ml

98 ml

99 ml

During breathing no stale of air remains in the lungs of.

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Mammals

Amphibian

Birds

Sarracenia

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

Raspatory activity which occurs in plants during day time is called.

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Respiration

Transpiration

Photorespiration

Cutaneous respiration

In the peroxisomes the glycolate is converted into

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Serine

Ethanolamine

Glycine

CO₂

Spiracles are found in

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Fish

Cockroach

Leech

Earth worm

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

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Cancer

Asthma

Emphysema

Tuberculosis

Rubisco is the most abundant protein in

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Golgi bodies

Chloroplast

Nucleoli

Mitochondria

Oxygen content of fresh air are

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200 ml/litre

10 ml/ litre

100 ml / litre

150 ml / litre

Respiratory distress syndrome is common in

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Adults

Old age people

Prelature infants

All new borns

How many molecule of oxygen can bind with a molecule of myoglobin.

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4

3

1

2

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