Topic: Chapter 6: Respiration



Topic: Chapter 6: Respiration
Q.1
The length of human trachea is about
A. 6 inches
B. 12c
C. 12 inches
D. 18 cm
Answer : Option B
Explaination / Solution:
No Explaination.


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Q.2
Chloride shift is required for transport of
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. Carbon dixide and oxygen
Answer : Option C
Explaination / Solution:
No Explaination.


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Q.3
In expiration, diaphragm becomes
A. Flattened
B. Relaxed
C. Straightened
D. Arched
Answer : Option B
Explaination / Solution:
No Explaination.


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Q.4
Volume of air breathed in and out during effortless respiration is
A. residual volume
B. vital volume
C. tidal volume
D. normal volume
Answer : Option C
Explaination / Solution:
No Explaination.


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Q.5
At high altitude, RBCs of human blood will
A. Increase in number
B. Decrease in number
C. Decrease in size
D. Increase in size
Answer : Option A
Explaination / Solution:
No Explaination.


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Q.6
About 1500 ml of air left in lungs is called
A. Tidal volume
B. Inspiratory reserve volume
C. Residual volume
D. Vital capacity
Answer : Option C
Explaination / Solution:
No Explaination.


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Q.7
A molecule of haemoglobin carries how many oxygen molecules
A. 1
B. 2
C. 3
D. 4
Answer : Option D
Explaination / Solution:
No Explaination.


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Q.8
The cells which do not respire
A. Epidermal cells
B. Sieve cells
C. Cortical cells
D. Erythocytes
Answer : Option D
Explaination / Solution:
No Explaination.


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Q.9
Gases diffuse over the respiratory surface because of
A. O2 is more in alveoli than in blood
B. O2 is more in blood than in tissues
C. CO2 is more in alveoli than in blood
D. PCO2 is more in blood than in tissues
Answer : Option A
Explaination / Solution:
No Explaination.


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Q.10
Carbon monoxide contained in Tobacco smoke
A. Is carcinogenic
B. Causes gastric ulcers
C. Reduces oxygen carrying capacity of blood
D. Raises blood pressure
Answer : Option C
Explaination / Solution:
No Explaination.


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