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Biology 10th Class English Medium Chapter 1 Online Test MCQs With Answers

Question # 1

How many lobs are present in right lung?

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Question # 2

What happens during Exhalation?

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Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All of these

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Question # 3

Which structure actively helps in taking the air out of lungs?

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Nasal cavity

Bronchus

Bronchiole

Diaphragm

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Question # 4

In plants, gaseous exchange takes place as:

Choose an answer

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

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Question # 5

Amount of oxygen in expired air is:

Choose an answer

21%

16%

0.04%

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Question # 6

What type of blood vessels surrounds the alveoli?

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Artery

Arteriole

Capillary

Vein

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Question # 7

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

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Bronchitis

emphysemsa

pneumonia

asthma

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Question # 8

Lungs are enclosed in a membrane called;

Choose an answer

peritonium

pleural membrane

epidermis pericardium

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Question # 9

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

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Question # 10

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 ,

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Question # 11

The length of trachea is:

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10 cm

12 cm

22 cm

20 cm

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Question # 12

The inflamation of bronchi or bronchioles is caled:

Choose an answer

Bronchites

Emphysema

Pneumonia

Chest box

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