Breathing & Exchange of Gases Test

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Breathing & Exchange of Gases Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

The value of TV is about 500 ml for an average adult human male but only some part of it enters lung alveoli and rest of it fills respiratory passage. What should be the distribution ratio for alveolar volume /respiratory passage volume:

A
7:3

B
2:3

C
1:1

D
3:7
Solution
Tidal volume (TV) = volume moved in one breath. Normal = 500 ml
- About 70% of TV reaches alveoli (350 ml) Only this amount is involved in gas exchange
- 30% in airways =respiratory passage (anatomical dead space)
So ratio = 350:150= 7:3
Question 2
1 / -0

Match the following:

respiratory volume value (in ml)

a) RV     i) 1000 - 1100

b) ERV     ii) 6000 - 8000

c) TV    iii) 2500 - 3000

d)IRV    iv) 1100 - 1200

A
a)-ii, b)-i, c)-iv, d)-iii

B
a)-ii, b)-iii, c)-i, d)-iv

C
a)-iv, b)-i, c)-ii, d)-iii

D
a)-iii, b)-iv, c)-ii, d)-i

Solution

TV isapprox. 500 mL., i.e., a healthy man caninspire or expire approximately 6000 to 8000mL of air per minute. IRV averages 2500mL to 3000 mL.ERV averages 1000mL to 1100 mL. RV averages 1100 mL to 1200 mL.
Question 3
1 / -0

Oxygenation of blood occurs in

A
gills

B
spleen

C
lungs

D
liver
Question 4
1 / -0

Ram suffers punctures in his chest cavity without any damage to the lungs in an accident. It results in

A
Reduction in breathing rate

B
Cessation of breathing

C
Rapid increase in breathing rate

D
No effect in breathing

Solution

haemopneumothorax, is a medical term describing the combination of two conditions: pneumothorax, or air in the chest cavity, and hemothorax (also called hæmothorax), or blood in the chest cavity. A hemothorax, pneumothorax or both can occur if the chest wall is punctured.

Becauseof punctured chest wall, the lungs cannot expand, the pressure in the lungs never drops and no air is pulled into the bronchi. Respiration is not possible.
Question 5
1 / -0

Which part of our respiratory system doesn’t need ciliated epithelium and thus have non-ciliated walls ?

A
nasal chamber

B
trachea

C
bronchioles

D
alveoli

Solution

Respiratory system does not need ciliated epithelium and thus have non-ciliated walls such as alveoli. Alveoli are the balloon like structure at which exchange of gases takes place.
Question 6
1 / -0

Which of the following cells eliminate particles and microbes reaching the alveoli?

A
Clara cells

B
Brush cells

C
Dense core granulated cells

D
Dust cells
Question 7
1 / -0

The exposure of carbon monoxide to animals

A
Reduces oxygen transport

B
Reduces carbon dioxide transport

C
Destroys haemoglobin

D
Increases carbon dioxide transport

Solution

The toxicity in animals is caused by the extraordinary affinity of carbon monoxide for haemoglobin which is responsible for the oxygen transport (approx. 250 times greater affinity of carbon monoxide compared to oxygen.because of higher affinity it destroys the haemoglobin.
Question 8
1 / -0

Which of the following structures prevent(s) the food from entering into the wind pipe and lungs during swallowing?

A
Sphincter muscles

B
Epiglottis

C
Mouth

D
Oesophagus
Question 9
1 / -0

No respiratory pigment is found in

A
cockroach

B
earthworm

C
rabbit

D
frog

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Re-Attempt Weekly Quiz Competition

Breathing & Exchange of Gases Test - 1

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Breathing & Exchange of Gases Test - 1

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SHARING IS CARING

Question 1

7:3

2:3

1:1

3:7

Solution

Question 2

a)-ii, b)-i, c)-iv, d)-iii

a)-ii, b)-iii, c)-i, d)-iv

a)-iv, b)-i, c)-ii, d)-iii

a)-iii, b)-iv, c)-ii, d)-i

Solution

Question 3

gills

spleen

lungs

liver

Question 4

Reduction in breathing rate

Cessation of breathing

Rapid increase in breathing rate

No effect in breathing

Solution

Question 5

nasal chamber

trachea

bronchioles

alveoli

Solution

Question 6

Clara cells

Brush cells

Dense core granulated cells

Dust cells

Question 7

Reduces oxygen transport

Reduces carbon dioxide transport

Destroys haemoglobin

Increases carbon dioxide transport

Solution

Question 8

Sphincter muscles

Epiglottis

Mouth

Oesophagus

Question 9

cockroach

earthworm

rabbit

frog

User

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My Perfomance

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