MEDIUM
11th CBSE
IMPORTANT
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 A person suffers punctures in his chest cavity in an accident without any damage to the lungs. Its effect could be: 

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Important Questions on Breathing and Exchange of Gases

MEDIUM
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 4
It is known that exposure to carbon monoxide is harmful to animals because:
MEDIUM
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 5
Mark the true statement among the following with reference to normal breathing:
EASY
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 6
A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is:
EASY
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 7
Mark the incorrect statement in context to O2 binding to Hb in alveoli:
MEDIUM
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 8
Which of the following statements is incorrect regarding the respiratory system?
EASY
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 9
The incidence of Emphysema, a respiratory disorder, is high in cigarette smokers. In such cases:
EASY
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 10
The respiratory process is regulated by certain specialized centres in the brain. One of the following listed centres can reduce the inspiratory duration upon stimulation.
MEDIUM
11th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 11>Chapter 17 - Breathing and Exchange of Gases>MULTIPLE CHOICE QUESTIONS>Q 11
CO2 dissociates from carbamino haemoglobin when: