MEDIUM
6th ICSE
IMPORTANT
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During heavy exercise, we get cramps in the legs due to the accumulation of:

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Important Questions on Respiratory System

EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 2
The normal range of 'breathing rate' per minute of an average adult person is:
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 3
During inhalation, the diaphragm:
MEDIUM
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 4
During exhalation, the rib cage:
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 5
One of the following is not produced during the anaerobic respiration in yeast. This one is:
MEDIUM
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 6

As compare to inhaled air, the exhaled air contains more of:
A. Water vapour B. Oxygen C. Carbon dioxide D. Nitrogen

EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 7
During respiration in humans, the exchange of gases takes place in:
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 1
The process of respiration takes place partially in the mitochondria and partially in the cytoplasm.
EASY
6th ICSE
IMPORTANT
Lakhmir Singh's Science Biology>Chapter 5 - Respiratory System>EXERCISES>Q 3
The trachea is the tube which is also called _____.