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Q 1.
The mountaineers carry oxygen with them?
Ans.
Because the amount of air available to a person is less than that available on the ground.
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Q 2.
During inhalation the size of the chest cavity?
Ans.
Increases.
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Q 3.
Tint pores on the surface of leaf is called
Ans.
Stomata.
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Q 4.
The respiration organs of human body
Ans.
Lungs.
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Q 5.
An organism with trachea system is?
Ans.
Insects.
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Q 6.
The opening through which we inhale is called?
Ans.
Nostrils.
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Q 7.
Insects have a network of air tubes called?
Ans.
Tracheae.
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Q 8.
What is the end product of respiration?
Ans.
Carbon dioxide + Water + Energy.
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Q 9.
Name the organisms which respire anaerobically?
Ans.
Yeast.
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Q 10.
During inhalation, the diaphragm moves?
Ans.
Moves downward.
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Q 11.
Define breath?
Ans.
A breath means one inhalation plus one exhalation.
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Q 12.
Where anaerobic respiration takes place?
Ans.
In muscles cell.
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Q 13.
Which type of organisms is yeasts?
Ans.
Single-celled.
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Q 14.
What is the end product after glucose breakdown without the use of oxygen?
Ans.
Alcohol + Carbon dioxide + Energy.
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Q 15.
What is the end product after glucose is breakdown in the presence of oxygen?
Ans.
Carbon dioxide + Water + Energy.
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Q 16.
When breakdown of food occurs without using oxygen is called?
Ans.
Anaerobic respiration.
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Q 17.
When breakdown of glucose occurs with the help of oxygen is called?
Ans.
Aerobic respiration.
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Q 18.
Breathing is a part of?
Ans.
Respiration.
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Q 19.
Name the part of the body through which fish takes oxygen?
Ans.
Gills.
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Q 20.
Name the part of the body through frog breathe?
Ans.
Lungs and Skin.
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Q 21.
Name the part of the body through earthworms breathe?
Ans.
Skin.
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Q 22.
During exhalation, the ribs are?
Ans.
Move downwards.
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Q 23.
What is the normal range of breathing per minute in an average adult?
Ans.
15-18 per minute.
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Q 24.
While during heavy exercise we get cramps in the legs due to?
Ans.
Accumulation of Lactic acid.
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Q 25.
In cockroaches, air enters the body through?
Ans.
Spiracles.
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