Human Physiology UPSC Questions

Biology
Human Physiology

Human Physiology MCQ Questions


13.
Which disorder is caused by damage to alveolar walls due to smoking?
A.
Asthma
B.
Bronchitis
C.
Emphysema
D.
Pneumonia
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ANSWER :
C. Emphysema
14.
What kind of respiration do frogs use in addition to lungs?
A.
Branchial
B.
Tracheal
C.
Cutaneous
D.
Buccal
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ANSWER :
C. Cutaneous
15.
Which gas has higher solubility and diffuses faster across membranes?
A.
Oxygen
B.
Carbon dioxide
C.
Nitrogen
D.
Hydrogen
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ANSWER :
B. Carbon dioxide
16.
What forms the conducting part of the respiratory system?
A.
Only alveoli
B.
Nostrils to terminal bronchioles
C.
Alveoli and ducts
D.
Bronchi only
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ANSWER :
B. Nostrils to terminal bronchioles
17.
Which of these is NOT a step in respiration?
A.
Diffusion of gases
B.
Breathing
C.
Circulation of lymph
D.
Cellular respiration
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ANSWER :
C. Circulation of lymph
18.
What defines the total lung capacity?
A.
TV + IRV
B.
TV + ERV + IRV
C.
VC + RV
D.
TV + RV
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ANSWER :
C. VC + RV
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