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NEET Biology MCQ
Breathing And Respiration Mcq
Quiz 13
Solution
Q.1.
CO2 is transported ... ....
15%
a) As carbonic acid
31%
b) In carbaminohaemoglobin
46%
c) As carbaminolaemoglobin and carbonic acid
8%
d) dissolved in blood plasma
Q.2.
A molecule of haemoglobin carries how many oxygen molecules
33%
a) 1
17%
b) 2
8%
c) 3
42%
d) 4
Q.3.
Gases diffuse over the respiratory surface because of (Manipal 2002)
18%
a) O2 is more in alveoli than in blood
45%
b) O2 is more in blood than in tissues
36%
c) CO2 is more in alveoli than in blood
0%
d) PCO2 is more in blood than in tissues
Q.4.
During inspiration ... ...
12%
a) Diaphragm and internal intercostal muscles contract
38%
b) Diaphragm and external intercostal muscles contract
44%
c) Diaphragm and external muscles relax
6%
d) Diaphragm and internal intercostal muscles relax
Q.5.
Percenatage of oxygen being carried by blood plasma is ... ....
27%
a) 6-9%
0%
b) 3-6%
55%
c) 2-3%
18%
d) 1-2%
Q.6.
At high altitude, RBCs of human blood will ... ....
20%
a) Increase in number
30%
b) Increase in size
40%
c) Decrease in number
10%
d) Decrease in size
Q.7.
Vocal cords occur in
10%
a) Bronchial tube
50%
b) Larynx
30%
c) Glottis
10%
d) Pharynx
Q.8.
Thoracic cage of man is formed of ... ...
33%
a) Ribs and thoracic vertebrae.
11%
b) Ribs and sternum
33%
c) Ribs,sternum and lumbar vertebrae
22%
d) Ribs,sternum and thoracic vertebrae
Q.9.
Capacity of human lungs for air in a healthy person is (Orissa 2005)
22%
a) 3000 ml
22%
b) 1500 ml
44%
c) 1000 ml
11%
d) 500 ml
Q.10.
Make the correct pairs.
Columan-I
Column-II
(a) Tidal volume
i. 1000 to 1100 ml
(b) Residual volume
ii. 500 ml
(c) Expiratory reserve volume
iii. 2500 to 3000 ml
(d) Inspiratory reserve volume
iv. 1100 to 1200 ml
50%
a) a = ii, b = iv, c = i, d = iii
25%
b) a = iii, b = i, c = ii , d= iii
25%
c) a = ii, b = iii, c = i, d = iv
0%
d) a = ii, b = i, c = iii, d= iv
Q.11.
In which disease lung tissue degenerate?
29%
a) Pneumonia
43%
b) Emphysema.
14%
c) Asthma
14%
d) Bronchitis
Q.12.
During respiration......
14%
a) O2 is produced and CO2 is consumed
57%
b) O2 is consumed and CO2 is produced
0%
c) Both O2 and CO2 are produced
29%
d) Both O2 and CO2 are consumed.
Q.13.
The muscles present between ribs are called
29%
a) Intercoslal muscles
0%
b) Phrenic muscles
29%
c) Cardiac muscles
43%
d) Voluntary muscles.
Q.14.
Flattening of alveolar ducts (tracheal vessels) results in
0%
a) Asthma
0%
b) Emphysema
14%
c) Lung cancer
86%
d) Bronchitis.
Q.15.
Blockage in respiratory passage in humans is prevented due to the presence of
0%
a) Larynx
33%
b) Epiglottis
67%
c) ‘C’ shaped cartilagenous rings.
0%
d) Alveoli
Q.16.
Hamburger’s phenomenon is also known as .....
0%
a) HCO3– shift
0%
b) Na+ shift
20%
c) H+ shift
80%
d) Chloride shift
Q.17.
Volume of air breathed in and out during effortless respiration is (Kerala 2001)
0%
a) vital volume
60%
b) residual volume
40%
c) normal volume
0%
d) tidal volume
Q.18.
Hiccough (hiccup) is due to activity of ... ....
0%
a) Intercostal muscles
25%
b) Food in air tract
75%
c) Diaphragm
0%
d) Inadequate oxygen in environment
Q.19.
SARS is caused by a variant of ... ...
67%
a) Pneumococcus pneumonia
17%
b) Common cold by Corona virus
17%
c) Asthma
0%
d) Bronchitis
Q.20.
How much pulmonary air is expired normally (Har.P.M.T.2005)
50%
a) 70%
17%
b) 20%
33%
c) 25%
0%
d) 32%
Q.21.
A respiratory surface must be ?
17%
a) Thin
0%
b) Moist
50%
c) Wide spread
33%
d) All these.
Q.22.
Mountain sickness at high altitude is due to ... ....
17%
a) Excess CO2 in blood
17%
b) Decreased CO2 in air
50%
c) Decreased partial pressure of oxygen
17%
d) Decreased efficiency of haemoglobin
Q.23.
Which of the following shows pulmonary respiration
86%
a) Human
0%
b) Coelentrate
14%
c) Sponge
0%
d) Fishes
Q.24.
How much fraction of oxygen is transported to tissues through RBCs?
0%
a) 100%
17%
b) 97%.
17%
c) 56%
67%
d) 45%
Q.25.
The left lung is slightly smaller so as
0%
a) It is exception
0%
b) No specific reason
43%
c) Both A and B
57%
d) To accommodate heart.
Q.26.
What is role of buffer system in blood ?
33%
a) To maintain pH of blood plasma
50%
b) To maintain pH of blood
17%
c) To maintain pH of RBC
0%
d) To maintain pH of blood platelets
Q.27.
Chloride shift is required for transport of ... ...
0%
a) Nitrogen
17%
b) Oxygen
0%
c) Carbon dioxide
83%
d) Carbon dixide and oxygen
Q.28.
Carbon dioxide is transported from tissues to respiratory surface by only(C.B.S.E.1993)
33%
a) Plasma and erythrocytcs
17%
b) Plasma
17%
c) Erythrocytes
33%
d) Erythrocytes and leucocytes.
Q.29.
A lung contains many small balloon like air sacs. are called.....
14%
a) Gas spaces
43%
b) Alveoli
43%
c) Bronchi
0%
d) Bronchioles
Q.30.
Which one is not viral infection
0%
a) Emphysema.
17%
b) Bronchitis
50%
c) Vocational lung disease
33%
d) Asthma
Q.31.
The human ribs
71%
a) Are accessory respiratory organs
0%
b) Do not help in breathing
29%
c) Are main respiratory organs
0%
d) Are not respiratory organs
Q.32.
In expiration, diaphragm becomes ... ...
33%
a) Arched
17%
b) Flattened
0%
c) Straightened
50%
d) Relaxed
Q.33.
Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is (C.B.S.E.1995)
57%
a) Inefficient system of ventilation with little of residual air
14%
b) Inefficient system of ventilation with high percentage of residual air
14%
c) An efficient system of ventilation with no residual air
14%
d) An efficient system of ventilation with little residual air.
Q.34.
Dissociation curve of O2 (which is dissociation from Hb) shifts to the rights....
14%
a) O2 concentration decrease
29%
b) CO2 concentration decreases
14%
c) CO2 concentration increase
43%
d) Chloride concentration increases
Q.35.
The centre which excites both the activities during rapid breathing is
25%
a) Ventral respiratory center
25%
b) Lateral respiratory center
50%
c) Dorsal respiratory center.
0%
d) Pneumotoxic center
Q.36.
At higher CO2 condtcentration,oxygen dissociation curve of haemoglobin will (CPMT.1990)
17%
a) Become irregular
33%
b) Move to left
50%
c) Become regular
0%
d) Move to right
Q.37.
Maximum amount 70-75% of carbon dioxide transport occurs as
17%
a) Carbaminohaemoglobin complex
50%
b) Bicarbonate
17%
c) Dissolved in plasma
17%
d) None of the above
Q.38.
Haemoglobin is (CB.S.E.1999)
80%
a) Blood carrier
0%
b) Vitamin
0%
c) Skin pigment
20%
d) Respiratoy pigment
Q.39.
CO2 reacts with water to form
40%
a) Carbonic acid
40%
b) Carbon mono oxide.
20%
c) Haemoglobinic acid
0%
d) Bicarbonate ions
Q.40.
CO2 from RBC enters blood plasma in the form of
0%
a) H2CO3
60%
b) HCO3–
20%
c) KHCO3
20%
d) NaHCO3
Q.41.
The length of human trachea is about .....
20%
a) 6 inches
60%
b) 12 cm
20%
c) 12 inches
0%
d) 18 cm
Q.42.
Blood transports oxygen in the form of
20%
a) HHbO2
0%
b) KHCO3
40%
c) KHbO2
40%
d) H2CO3
Q.43.
Volume of air remaining in lungs after: maximum respiratory effort is
25%
a) Tidal volume
50%
b) Vital capacity
0%
c) Total lung capacity
25%
d) Residual volume
Q.44.
A higher CO2 concentration of blood causes .. ...
0%
a) Slow diffusion of CO2 from blood
25%
b) Slow transport of CO2 from blood
50%
c) Slow diffusion of O2 from blood
25%
d) Both A and B
Q.45.
They respire through lungs
40%
a) Crocodiles
20%
b) Fish
20%
c) Earthworms
20%
d) Cockroaches
Q.46.
The metal ion present in haemoglobin is
60%
a) Iron
0%
b) Magnesium
40%
c) Copper
0%
d) Zinc
Q.47.
During normal breathing the ventral respiratory center
0%
a) Maintian rhythmicity of respiration
20%
b) Does not play significant role
40%
c) Excites both inhalation and exhalation
40%
d) Regulate breathing
Q.48.
Respiratory control centres are loacted in
0%
a) Ribs
0%
b) Spinal cord
67%
c) Medulla oblongata
33%
d) Lungs
Q.49.
Sound production in humans is controlled by
0%
a) Pharynx
100%
b) Larynx
0%
c) Nares
0%
d) Lungs
Q.50.
Trachea terminates in
17%
a) Nares
17%
b) Alveoli
67%
c) Bronchioles
0%
d) Bronchi
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