Human Physiology UPSC Questions

Biology

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