Breathing and Exchange of Gases Test 0

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Breathing and Exchange of Gases Test 0

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Weekly Quiz Competition

Question 1
1 / -0

Respiratory enzymes are present in which of the following organelle?

A
Nucleus

B
Chloroplast

C
Mitochondria

D
Lysosome

Solution

Mitochondria are a double-membraned cell organelle, many reactions involved in cellular respiration occur in mitochondria because of the presence of respiratory enzymes.
So, the correct option is 'Mitochondrion'.
Question 2
1 / -0

Transport of O$$_2$$ is done by

A
Plasma

B
RBC

C
Lungs

D
Nostrils

Solution

RBC contains haemoglobin a molecule made up four subunits each of them contains iron which is bound to haem group is responsible for the transport of oxygen in the blood from lungs to tissue and vice versa and a single molecule is able to carry four oxygen atoms at a time.
So, the correct option is 'RBC'
Question 3
1 / -0

The given figure shows the diagrammatic view of human respiratory system. Identify A, B, C and D.

A
A-Epiglottis, B-Alveoli, C- Bronchus, D-Diaphragm

B
A-Epiglottis, B-Alveoli, O-Bronchioles, D-Diaphragm

C
A-Soundbox,B-Alveoli, C- Bronchus, D-Diaphragm

D
A-Larynx,- B-Alveoli,- C-Bronchioles, D-Diaphragm

Solution

In the given figure depicting the human respiratory system, the unidentified parts are as follows: A-Epiglottis, B-Alveoli, C- Bronchus, D-Diaphragm.
So, the correct answer is '
A-Epiglottis, B-Alveoli, C- Bronchus, D-Diaphragm'.

Question 4

1 / -0

Match column I with column II and select the correct option from the given codes.

Column I	Column II
A. Tidal volume	(i)2500-3000 mL of air
B. Inspiratory reserve volume	(ii) 1000 mL of air
C. Expiratory reserve volume	(iii) 500 mL of air
D. Residual volume	(iv) 3400-4800 mL of air
E. Vital capacity	(v) 1200 mL of air

A-(iii),B-(iv), C-(ii),D-(i),E-(v)

A-(iii), B-(i),C-(ii), D-(v), E-(iv)

A-(iii),B-(i)(C-(iv),D-(v),E-(ii)

A-(v), B-(i), C-(ii), D-(iii), E-(iv)

Solution

A. Tidal volume - (iii) 500 mL of air

B. Inspiratory reserve volume - (i) 2500-3000 mL of air

C. Expiratory reserve volume - (ii) 1000 mL of air

D. Residual volume - (v) 1200 mL of air

E. Vital capacity - (iv) 3400-4800 mL of air

So, the correct answer is A-(iii), B-(i),C-(ii), D-(v), E-(iv)'.

Question 5
1 / -0

Which of the following sequences is correct to initiate inspiration?
(i) The contraction of external intercostal muscles raises the ribs and sternum
(ii) Volume of thorax increases in the dorso-ventral axis
(iii) Intrapulmonary pressure decreases
(iv) Diaphragm contraction
(v) Air rushes into lungs
(vi) Volume of thorax increases in the anterior-posterior axis

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

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

C
(i),(ii),(iv),(vi),(iii),(v)

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

Solution

The correct sequence of events in the initiation of respiration is:
(i)   The contraction of external intercostal muscles raises the ribs and sternum
(ii)   The volume of thorax increases in the dorsoventral axis
(iv)   Diaphragm contraction
(vi)   The volume of thorax increases in the anterior-posterior axis
(iii)   Intrapulmonary pressure decreases
(v)   Air rushes into lungs
So, the correct answer is '(i),(ii),(iv),(vi),(iii),(v)'.
Question 6
1 / -0

Direction: Refer to the given graph and select the correct options for the questions that follow.

Which of these is incorrect regarding A and B in the given graph?

A
A is deoxygenated blood leaving the tissues.

B
B is reduced blood returning from tissues.

C
A is oxygenated blood leaving the lungs.

D
B is deoxygenated blood in the systemic veins.

Solution

In the given figure, B can be interpreted as deoxygenated blood present in the systemic veins.

So, the correct answer is 'B is deoxygenated blood in the systemic veins.'
Question 7
1 / -0

Study the given figure of respiratory passage carefully and identify the-parts labelled as A, B, C, D and E.

A
(A) Alveolar sac (B) Secondary bronchus (C)Alveoli (D) Bronchioles (E)Trachea

B
(A) Alveoli (B) Secondary bronchus (C)Alveolar sac (D)Trachea (E)Bronchioles

C
(A) Alveolar sac (B) Tertiary bronchus (C)Alveoli (D) Trachea (E)Bronchioles

D
(A) Alveoli (B) Tertiary bronchus (C) Alveolar sac (D) Bronchioles (E)Trachea

Solution

In the given figure depicting the respiratory passage in man, the unidentified parts are as follows: (A) Alveolar sac, (B) Secondary bronchus, (C) Alveoli, (D) Bronchioles, and (E) Trachea.
So, the correct answer is '
(A) Alveolar sac (B) Secondary bronchus (C)Alveoli (D) Bronchioles (E)Trachea'.
Question 8
1 / -0

The relationship between pressure and volume was first noted by ............. while ............. confirmed their discovery and ............ published the result.

A
Richard Towneley and Henry Power, Robert Boyle

B
Richard Towneley and Henry Power, Robert Hooke

C
Robert Boyle and Robert Hooke, Robert Boyle

D
None of these
Solution
Boyle's law (sometimes referred to as the Boyle–Mariotte law or Mariotte's law is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases. A modern statement of Boyle's law is - The absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system.
This relationship between pressure and volume was first noted by Richard Towneley and Henry Power in the seventeenth century. Robert Boyle confirmed their discovery through experiments and published the results. So, the correct answer is A.
Question 9
1 / -0

Which of the following is present in alveoli?

A
Stratified epithelium

B
Epithelium

C
Cartilaginous rings

D
None of these

Solution

Alveoli are sac like structure forming the lungs, made up of a single layer of squamous epithelium to facilitate exchange of gases.
So, the correct answer is 'Epithelium'
Question 10
1 / -0

The narrowest and most numerous tubes of lungs are termed as

A
Hilum

B
Bronchus

C
Alveoli

D
Bronchioles

Solution

The bronchioles or bronchioli are the passageways by which air passes through the nose or mouth to the alveoli (air sacs) of the lungs. The bronchus divides into smaller branches known as segmental bronchi, which divide again into bronchioles, and then again into terminal bronchioles.

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Breathing and Exchange of Gases Test 0

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SHARING IS CARING

Question 1

Nucleus

Chloroplast

Mitochondria

Lysosome

Solution

Question 2

Plasma

RBC

Lungs

Nostrils

Solution

Question 3

A-Epiglottis, B-Alveoli, C- Bronchus, D-Diaphragm

A-Epiglottis, B-Alveoli, O-Bronchioles, D-Diaphragm

A-Soundbox,B-Alveoli, C- Bronchus, D-Diaphragm

A-Larynx,- B-Alveoli,- C-Bronchioles, D-Diaphragm

Solution

Question 4

A-(iii),B-(iv), C-(ii),D-(i),E-(v)

A-(iii), B-(i),C-(ii), D-(v), E-(iv)

A-(iii),B-(i)(C-(iv),D-(v),E-(ii)

A-(v), B-(i), C-(ii), D-(iii), E-(iv)

Solution

Question 5

(i),(ii),(iv),(v),(iii),(vi)

(i), (ii), (iii), (iv), (vi), (v)

(i),(ii),(iv),(vi),(iii),(v)

(vi), (v), (i), (ii), (iii), (iv)

Solution

Question 6

A is deoxygenated blood leaving the tissues.

B is reduced blood returning from tissues.

A is oxygenated blood leaving the lungs.

B is deoxygenated blood in the systemic veins.

Solution

Question 7

(A) Alveolar sac (B) Secondary bronchus (C)Alveoli (D) Bronchioles (E)Trachea

(A) Alveoli (B) Secondary bronchus (C)Alveolar sac (D)Trachea (E)Bronchioles

(A) Alveolar sac (B) Tertiary bronchus (C)Alveoli (D) Trachea (E)Bronchioles

(A) Alveoli (B) Tertiary bronchus (C) Alveolar sac (D) Bronchioles (E)Trachea

Solution

Question 8

Richard Towneley and Henry Power, Robert Boyle

Richard Towneley and Henry Power, Robert Hooke

Robert Boyle and Robert Hooke, Robert Boyle

None of these

Solution

Question 9

Stratified epithelium

Epithelium

Cartilaginous rings

None of these

Solution

Question 10

Hilum

Bronchus

Alveoli

Bronchioles

Solution

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