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Online Tests
Biology 10th Class English Medium Chapter 10 Online Test MCQs With Answers
Question # 1
How many bronchi are there in the air passageway?
Choose an answer
One
Two
Many
None of these
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Question # 2
For gaseous exchange the leaf and young stems have in their epidermis:
Choose an answer
Stomata
Lenticels
Companion cell
Guard cells
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Question # 3
In man the correct passage of air is:
Choose an answer
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 # 4
How many pairs of ribs in humans?
Choose an answer
12
24
26
30
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Question # 5
How many lobs are present in right lung?
Choose an answer
2
3
4
5
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Question # 6
Rate of breathing depends upon concentration of which gas:
Choose an answer
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
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Question # 7
How many carciogens are present in cigarette smoke?
Choose an answer
40
50
60
70
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Question # 8
Every year "World Day" is celebrated on:
Choose an answer
31 May
30 May
31 March
21 March
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Question # 9
Which gas us absorbed through stomata of plant during night?
Choose an answer
Carbon dioxide
Oxygen
Nitrigen
Hydrogen
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Question # 10
Main role to give out air form lungs is;
Choose an answer
Bronchus
Bronchi
Bronchiote
Diaphragm
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Question # 11
The major cause of lungs cancer is:
Choose an answer
nicotine
smoking
viral infection
radiation
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Question # 12
Most of the gaseous exchange in a leaf occurs through.
Choose an answer
Stomata
General surface
Cuticle
lenticels
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Question # 13
The structural and functional unit of lungs is:
Choose an answer
trachea
pharynx
broncioles
alveolus
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