Question # 1

In man the system of gaseous exchange is:

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digestive system

respiratory system

nervous system

excretory system

What percentage of oxygen inhaled form air during breathing?

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21%

22%

23%

24%

A disease involving the breakdown of air sacs of the lungs is:

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Bronchitis

emphysemsa

pneumonia

asthma

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

During exercise or other hard physical works the breathing rate may increase up to.

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30-40 times per minute

50-60 times per minute

60-70 times per minute

70-80 times per minute

In human which process occurs in alveoli?

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Tranport

Nutition

Gaseous Exchange

Reproduction

In plants, gaseous exchange takes place as:

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CO2 is removed and O2 is absorbed

CO2 is absorbed and O2 is removed

CO2 and O2 both are absorbed

CO2 and O2 both are removed

The respiratory disease that is the destruction of the walls of Alveoli is;

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Asthma

Pneumonia

Emphysema

Bronchitis

The length of trachea is:

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10 cm

12 cm

22 cm

20 cm

Smoking may also lead to the cancers in:

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Kidneys and pancreas

Oral cavity and larynx

Breast and bladder

All of them

In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears?

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Pneumonia

Asthma

Emphy sema

Bronchitis

Power of speaking is only gifted to:

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Human being

Monkey

Parrot

Crow

What happens during Exhalation?

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Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All of these

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

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