The human respiratory system — Question Bank (Cambridge) — Cambridge IGCSE Physics 0625 Revision Notes & Topical Questions

Cambridge Lower Secondary Stage 8

Question 1
Paper Ref: 0610/21_Summer_2009_Q7

The diagram shows some cells from the lining of the trachea (windpipe) in the respiratory tract.
What is the function of the structures labelled X?
A absorbing oxygen
B killing micro-organisms
C moving mucus
D trapping bacteria

Options:
A
B
C
D
Correct Key: C

Question 2
Paper Ref: 0610/12_Winter_2023_Q22

The diagram shows the human breathing system.
bronchus bronchiole trachea
bronchus trachea
bronchiole
trachea bronchus bronchiole
trachea diaphragm bronchus

Options:
A
B
C
D
Correct Key: C

Question 3
Paper Ref: 0610/12_Winter_2021_Q22

Which shows the correct order of structures that air travels through when a human breathes in?
A alveoli > trachea > bronchioles —> bronchi
B_ trachea — bronchi —> bronchioles —> alveoli
C alveoli — bronchioles + bronchi —> trachea
D
trachea — bronchioles — bronchi —> alveoli

Options:
A
B
C
D
Correct Key: B

Question 4
Paper Ref: 0610/23_Winter_2021_Q5

The diagram shows some cells.
cilia
cytoplasm
nucleus
Where are these cells found?
A alimentary canal
blood
bronchus
0 O WW
plant roots

Options:
A
B
C
D
Correct Key: C

Question 5
Paper Ref: 0610/23_Summer_2013_Q23

The diagram shows some ciliated cells from the trachea.
What is the function of the parts labelled X?
detecting stimuli
B_ exchanging gases
C moving mucus
D trapping bacteria

Options:
A
B
C
D
Correct Key: C

Question 6
Paper Ref: 0610/21_Summer_2013_Q22

The diagram shows some ciliated cells from the trachea.
What is the function of the parts labelled X?
detecting stimuli
is]
exchanging gases
Qa
moving mucus
D trapping bacteria

Options:
A
B
C
D
Correct Key: C

Question 7
Paper Ref: 0610/13_Winter_2025_Q4

Which statement describes a plasmid?
A
B
Cc
D
It is a circular piece of DNA.
It is the liquid part of human blood.
It is the site of aerobic respiration.
It is the site of protein synthesis.

Options:
A
B
C
D
Correct Key: A

Question 8
Paper Ref: 0610/22_Winter_2013_Q22

The diagram shows some structures in the human neck and thorax.
The lining of tube Q has cilia.
What is an important function of the cilia?
oo BD
to help in the exchange of gases
to increase the internal surface area of tube Q
to moisten the air entering and leaving the lungs
to move mucus towards the throat

Options:
A
B
C
D
Correct Key: D

Question 9
Paper Ref: 0610/12_Summer_2019_Q5

Which group of organs belongs to the same organ system?
A
B
C
D
diaphragm, oesophagus, trachea
heart, liver, lungs
heart, stomach, trachea
oesophagus, intestine, stomach

Options:
A
B
C
D
Correct Key: D

Question 10
Paper Ref: 0610/11_Winter_2024_Q5

What is the function of ciliated cells in the bronchi?
A to absorb oxygen
to digest pathogens
to move mucus
0 OO WW
to produce antibodies

Options:
A
B
C
D
Correct Key: C

Question 11
Paper Ref: 0610/23_Summer_2022_Q21

Carbon dioxide is produced by aerobic respiration.
How many molecules of carbon dioxide are produced from the aerobic respiration of three
molecules of glucose?
A 3 B 6 C 12 D 18

Options:
A
B
C
D
Correct Key: D

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