Breathing and Exchange of Gases Test 6

Question 1
1 / -0

Which one of the following is wrong statement with respect to the functions of respiratory system?

A
Humidifies the air

B
Warms up the air

C
Cleans up the air

D
Diffusion of gases

Question 2
1 / -0

The principle of exchange of gases at the lungs is :

A
Filtration

B
Conditioning and facilitated transport

C
both diffusion and filtration

D
Diffusion

Question 3
1 / -0

The regulatory centres for respiration are located in :

A
Diencephalon and pons

B
medulla oblongata & pons

C
pons & cerebellum

D
cerebellum and medulla oblongata

Question 4
1 / -0

In CNS, regulation of respiratory rhythm during normal breathing is largely dependent upon :

A
carbon dioxide concentration

B
oxyhemoglobin concentration

C
RBCs in the body

D
oxygen concentration

Question 5
1 / -0

Match the following:

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

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

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

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

Question 6
1 / -0

Respiration in insects is direct due to exchange of gases

A
Directly with the air outside through body surface

B
By tracheal tubes directly with haemocoel which then exchange with tissues.

C
Directly with coelomic fluid

D
Directly with the air in tubes

Question 7
1 / -0

Read the following statements :
i. The affinity of Hb for CO is 200 to 250 times more than its affinity for oxygen therefore CO competes with oxygen for binding to Hb.
ii. The result of this binding are a shift of oxygen-hemoglobin dissociation curve to the left and its alteration to a more hyperbolic shape.

A
both are correct

B
Statement i) is correct and ii) is wrong

C
Statement i) is wrong and ii) is correct

D
both are wrong

Question 8
1 / -0

RBCs and muscle cells carry out anaerobic respiration, but :
i. RBCs are permanently anaerobic and muscle cells are temporarily anaerobic
ii. RBCs are temporarily anaerobic and muscle cells are permanently anaerobic
iii. Muscle cells lack mitochondria.

A
only statement ii) is correct.

B
only statement ii) and iii) are correct.

C
only statement i) is correct.

D
None of the statements are correct.

Question 9
1 / -0

Loud snoring and labored breathing are symptoms of :

A
peripheral sleep apnea

B
obstructive sleep apnea

C
central sleep apnea

D
bronchitis

Question 10
1 / -0

A film of _____ lines lung alveoli that lowers _____ of the alveoli and makes breathing _____ :

A
Lecithin, surface tension, easier.

B
Pleuron, surface tension, easier.

C
Cuticle, bacterial inflammation, difficult.

D
Cuticle, inflating, difficult.

Question 11
1 / -0

Water breathing is more problematic than air breathing because :
i. water is 800 times more dense and hence holds much more oxygen than air does.
ii. since oxygen dissolved in water diffuses far more slowly than air therefore large quantity of water is required to be passed over the gills.

A
statement ii) is wrong and i) is correct.

B
both statements are wrong.

C
statementi) is wrong and ii) is correct.

D
both statements are correct.

Question 12
1 / -0

Read the following about blood pigments :
i. Hemoglobin is the pigment present in our blood and is iron containing protein.
ii. Haemocyanin is the pigment present in blood of Palaemon and is copper containing protein.
iii. Haemocyanin is much more efficient than haemoglobin.

A
only statement i) is correct.

B
all statements are correct.

C
pnly statement ii) and iii) are correct.

D
only statement i) and ii) are correct.

Question 13
1 / -0

The given graph shows O₂ consumption and ventilation during exercise so we can infer from this graph :

i. During exercise, oxygen consumption rate in our body increases.
ii. Neural stimulus allows abdominal muscles , which are a kind of smooth muscle to contract to facilitate ventilation while exercising.
iii. Increase in ventilation during exercise prevents large changes in the partial pressure of O₂ or CO₂
iv. The overall impact is breathing rate increases.

A
all the above statements are correct.

B
onlyi) and iii) are correct.

C
onlyi) and ii) are correct.

D
only i),iii) and iv) are correct.

Question 14
1 / -0

The exchange of gases in :
i. the alveoli that lowers the pO₂ of blood and raises its pCO₂ is external respiration
ii. the tissues that lowers the pCO₂ of blood and raises its pO₂ is internal respiration

A
statement ii) is wrong and i) is correct.

B
both statements are correct.

C
statementi) is wrong and ii) is correct.

D
both statements are wrong.

Question 15
1 / -0

Habit of Cigarette smoking can lead to :

A
loss of cilia lining the respiratory tract

B
all of the following

C
coughing

D
emphysema

Question 16
1 / -0

Read the following :
i. During chloride shift , the chloride ions diffuse from RBC’s into the blood plasma.
ii. Chloride shift, helps to maintain ionic balance and chemical neutrality.
iii. Chloride shift occurs during transport of CO₂ .

A
only statement ii) and iii) are correct.

B
only statement i) and ii) are correct.

C
only statement iii) is correct.

D
all statements are correct.

Question 17
1 / -0

Insect of family chironomidae eg..chironomous larvae are also known as bloodworms since :

A
they contain haemoglobin as their respiratory pigment

B
both A & B

C
they are blood parasites

D
they contain haemocyanin as their respiratory pigment

Question 18
1 / -0

If TLC is 5500ml, IRV is 2950ml, ERV is 900ml and TV is 500ml then what will be value of RV ?

A
2550ml

B
1100ml

C
1200ml

D
1150ml

Question 19
1 / -0

The correct sequence of respiration is
i) Breathing in oxygen
ii) Transportation of gases by the blood
iii) Diffusion of gases between blood and tissues
iv) Diffusion of gases across alveolar membrane
v) Using of oxygen and releasing of carbondioxide

A
i), ii), iii), iv), v)

B
i), iv), ii), iii), v)

C
i), ii), iv), iii)

D
i), iii), iv), ii), v)

Question 20
1 / -0

Match the following:

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

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

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

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

Submit Test

Breathing and E...

Question 1

Humidifies the air

Warms up the air

Cleans up the air

Diffusion of gases

Question 2

Filtration

Conditioning and facilitated transport

both diffusion and filtration

Diffusion

Question 3

Diencephalon and pons

medulla oblongata & pons

pons & cerebellum

cerebellum and medulla oblongata

Question 4

carbon dioxide concentration

oxyhemoglobin concentration

RBCs in the body

oxygen concentration

Question 5

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

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

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

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

Question 6

Directly with the air outside through body surface

By tracheal tubes directly with haemocoel which then exchange with tissues.

Directly with coelomic fluid

Directly with the air in tubes

Question 7

both are correct

Statement i) is correct and ii) is wrong

Statement i) is wrong and ii) is correct

both are wrong

Question 8

only statement ii) is correct.

only statement ii) and iii) are correct.

only statement i) is correct.

None of the statements are correct.

Question 9

peripheral sleep apnea

obstructive sleep apnea

central sleep apnea

bronchitis

Question 10

Lecithin, surface tension, easier.

Pleuron, surface tension, easier.

Cuticle, bacterial inflammation, difficult.

Cuticle, inflating, difficult.

Question 11

statement ii) is wrong and i) is correct.

both statements are wrong.

statementi) is wrong and ii) is correct.

both statements are correct.

Question 12

only statement i) is correct.

all statements are correct.

pnly statement ii) and iii) are correct.

only statement i) and ii) are correct.

Question 13

all the above statements are correct.

onlyi) and iii) are correct.

onlyi) and ii) are correct.

only i),iii) and iv) are correct.

Question 14

statement ii) is wrong and i) is correct.

both statements are correct.

statementi) is wrong and ii) is correct.

both statements are wrong.

Question 15

loss of cilia lining the respiratory tract

all of the following

coughing

emphysema

Question 16

only statement ii) and iii) are correct.

only statement i) and ii) are correct.

only statement iii) is correct.