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

Question # 1

In which of the following gaseous exchange occur through stomata?

Choose an answer

The leaves and young stems

Wood stems and nature roots.

Young roots

The aquatic plants

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Question # 2

The respiratory centre is present in :

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Lungs

Brain

Nose

Muscles

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Question # 3

How many pairs of ribs in humans?

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Question # 4

For gaseous exchange the leaf and young stems have in their epidermis:

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Stomata

Lenticels

Companion cell

Guard cells

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Question # 5

The uncontrolled cell divisions in lungs tissue is called:

Choose an answer

bronchitis

emphysema

cancer

Asthma

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Question # 6

Every year "World Day" is celebrated on:

Choose an answer

31 May

30 May

31 March

21 March

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Question # 7

In wood seems and roots the gaseous:

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lenticels

epidermal cells

somata

micropyle

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Question # 8

Power of speaking is only gifted to:

Choose an answer

Human being

Monkey

Parrot

Crow

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Question # 9

Which bring deoxygenated blood form heart into lungs?

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Pulmonary veins

Pulmonary Artery

Aorta

Wind Pipe

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Question # 10

How many carciogens are present in cigarette smoke?

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Question # 11

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 # 12

Stomata are present in:

Choose an answer

Phloem

Xylem

Endodermis

Epidermis

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