Question # 1

The length of trachia is __________ cm approximately:

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10

12

14

16

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

How many carciogens are present in cigarette smoke?

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40

50

60

70

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 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

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

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.

The respiratory centre is present in :

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Lungs

Brain

Nose

Muscles

A thick muscular layer beneath lungs is called:

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Kidney

Diaphragm

Bladder

Ureter

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

Stomata are present in:

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Phloem

Xylem

Endodermis

Epidermis

The primary chemical stimulus for breathing is the concentration of.

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Carbon dioxide in blood.

Oxygen in blood

Carbon oxide in muscles

Oxygen in muscles.

Gaseous Exchange in cow takes in:

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Bronchi

Tranchea

Pharynx

Alveoli

In man the system of gaseous exchange is:

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digestive system

respiratory system

nervous system

excretory system

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