Welcome to your Human Physiology -2
1.
Which part of respiratory tract lacks cartilage?
2.
Which respiratory organ is used by fishes?
3.
Which structure prevents food from entering trachea?
4.
Number of lungs in humans is
5.
Cutaneous respiration is seen in
6.
Hemoglobin is present in
7.
Oxygen dissociation curve shifts right due to
8.
Which factor does NOT affect diffusion of gases?
9.
Respiratory disorders affect mainly
10.
Alveoli are specialised for
11.
Total lung capacity includes
12.
Expiration is normally a
13.
Which gas is utilised by organisms to release energy?
14.
Exchange of gases in sponges occurs through
15.
Oxygen is transported mainly by
16.
Bohr effect relates to
17.
Which condition favours oxygen binding to Hb?
18.
Carbon dioxide is transported mainly as
19.
Which condition increases oxygen release in tissues?
20.
The thoracic cavity is anatomically an
21.
Which gas is transported least by blood?
22.
Which vertebrates respire only through lungs?
23.
Partial pressure of oxygen is highest in
24.
Vital capacity is maximum amount of air that can be
25.
Intrapulmonary pressure is pressure
26.
Residual volume of lungs prevents
27.
In insects, respiration occurs through
28.
Inspiration occurs when
29.
Exchange of gases in lungs occurs due to
30.
Oxyhaemoglobin formation depends on
31.
Myoglobin is present in
32.
Respiratory surface must be
33.
Which muscle contracts during inspiration?
34.
Alveolar walls are extremely thin to
35.
Partial pressure gradient is essential for
36.
Which membrane covers lungs?
37.
Which gas has higher diffusion rate?
38.
Which pigment carries oxygen in humans?
39.
Which enzyme catalyses conversion of CO₂ to carbonic acid?
40.
Emphysema is caused by damage to
41.
Chloride shift occurs in
43.
Tidal volume refers to
44.
Breathing is best defined as
45.
Smoking affects respiration by
