Breathing and Exchange of Gases Questions and Answers Part-5

1. Which of the following statements is correct?
a) Inspiration is an active process
b) Inspiration is a passive process
c) Expiration is an active process
d) Both expiration and inspiration are passive processes

Answer: a
Explanation: "Inspiration is an active process". This is correct.

2. Gaseous exchange between blood and alveolar air across respiratory membrane occurs by
a) Osmosis
b) Diffusion
c) Active transport
d) Phagocytosis

Answer: b
Explanation: Diffusion

3. On an average, a healthy human breathes how many times/minute
a) 20 to 40
b) 72 to 75
c) 3 to 5
d) 12 to 16

Answer: d
Explanation: 12 to 16

4. We can increase the strength of inspiration and expiration by the help of additional muscle in
a) Abdomen
b) Neck
c) Pelvis
d) Head

Answer: a
Explanation: Abdomen

5. Match the following:

q45
a) 1–E, 2–C, 3–B, 4–G, 5–D, 6–A, 7–F
b) 1–E, 2–G, 3–B, 4–C, 5–A, 6–D, 7–F
c) 1–E, 2–C, 3–G, 4–B, 5–D, 6–A, 7–F
d) 1–E, 2–B, 3–G, 4–C, 5–D, 6–A, 7–F

Answer: d
Explanation: 1–E, 2–B, 3–G, 4–C, 5–D, 6–A, 7–F

6.Match the following:
1. Tidal Volume    –    A. 2500-3000 ml of air
2. Inspiratory reserve volume – B. 1000-1100 ml of air
3. Expiratory reserve volume – C. 500 ml of air
4. Residual volume    –    D. 3500-4600 ml of air
5. Vital capacity    –    E. 1100-1200 ml of air
a) 1-C, 2-D, 3-B, 4-A, 5-E
b) 1-C, 2-A, 3-B, 4-E, 5-D
c) 1-C, 2-A, 3-D, 4-E, 5-B
d) 1-E, 2-A, 3-B, 4-E, 5-D

Answer: b
Explanation: 1-C, 2-A, 3-B, 4-E, 5-D

7. Total lung capacity is equal to
a) ERV + TV
b) IRV+ TV
c) VC + RV
d) ERV + TV + IRV

Answer: c
Explanation: Total lung capacity is equal to VC + RV.

8. Vital capacity is equal to
a) ERV + TV
b) IRV+ TV
c) VC + RV
d) ERV + TV + IRV

Answer: d
Explanation: Vital capacity is equal to ERV + TV + IRV.

9. EC (expiratory capacity) is equal to
a) ERV + TV
b) IRV+ TV
c) VC + RV
d) ERV + TV + IRV

Answer: a
Explanation: EC (expiratory capacity) is equal to ERV + TV.

10. IC (Inspiratory capacity) is equal to
a) ERV + TV
b) IRV+ TV
c) VC + RV
d) ERV + TV + IRV

Answer: b
Explanation: IC (Inspiratory capacity) is equal to IRV+ TV.