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1 of 25
Q.1 Which among the following does not exchange o2 with CO2 through simple diffusion
- Earthworms
- Earthworms
- Sponges
- Flatworms
2 of 25
Q.2 Which among the following have well developed respiratory system
- Cockroaches
- Earthworms
- Sponges
- Mammals
3 of 25
Q.3 How many lobes are present in right lung
- 2
- 5
- 3
- 4
4 of 25
Q.4 Name a sound box which is responsible for sound production
- Pharynx
- Larynx
- Epiglottis
- None of the above
5 of 25
Q.5 Thoracic chamber is dorsally formed by
- Vertebral column
- Sternum
- Ribs
- Diaphragm
6 of 25
Q.6 Inspiration occurs if the pressure within the lungs is
- More than atm pressure
- Less tha atm pressure
- Equal to atm pressure
- None of the above
7 of 25
Q.7 The part starting from external nostril upto terminal bronchioles is known as
- Conducting part
- Exchange part
- Respiratory part
- None of the above
8 of 25
Q.8 What is the structural and functional unit of lungs
- Bronchioles
- Alveoli
- Bronchi
- Both a and c
9 of 25
Q.9 On an average healthy human breathes how many times per minute
- 12-16
- 15-16
- 20-25
- 72
10 of 25
Q.10 What is the inspiratory reserve volume
- 2500-3000 ml
- 500 ml
- 1000-1100 ml
- None of the above
11 of 25
Q.11 Volume air inspired or expired during normal respiration is known as
- TV
- IRV
- ERV
- RV
12 of 25
Q.12 which among the following is measured by spirometer
- Total lung capacity
- FRC
- RV
- TV
13 of 25
Q.13 Pressure contributed by an individual gas in a mixture of gas is known as
- Partial pressure
- Diffusion pressure
- Osmotic pressure
- None of the above
14 of 25
Q.14 Solubility of CO2 is how many times higher than O2
- 10-15
- 30-40
- 20-21
- 20-25
15 of 25
Q.15 What is the partial pressure of O2 in atmosphere
- 156
- 159
- 94
- 40
16 of 25
Q.16 What is the partial pressure of O2 in deoxygenated blood
- 45
- 40
- 95
- 43
17 of 25
Q.17 How many percent of co2 is carried by plasma in dissolved form
- 6
- 7
- 20-25
- None of the above
18 of 25
Q.18 How many percent of co2 is carried as bicarbonate
- 50
- 97
- 70
- 25
19 of 25
Q.19 Every 100ml of deoxy blood delivers approx
- 2ml of co2 to alveoli
- 3 of co2 to alveoli
- 4ml of co2 to alveoli
- 7ml of co2 to alveoli
20 of 25
Q.20 RBC contains very high quantity of which enzyme
- Carbonic anhydrase
- Lysosome
- Ligase
- None of the above
21 of 25
Q.21 which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
22 of 25
Q.22 Whose role in respiratory rhythm regulation is insignificant
- Co2
- O2
- Both a and b
- None of the above
23 of 25
Q.23 Pneumotaxic centre is present in which region of brain
- Medulla
- Hypothalamus
- Pons
- None of the above
24 of 25
Q.24 Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
25 of 25
Q.25 which among the following is responsible to shift o2 dissociation curve right
- High Pco2
- Low pco2
- Low H+
- None of the above