WorksheetsBreathing and Gas Exchange
Total questions: 18
Worksheet time: 9mins
What is the scientific word for 'chest'?
Abdomen
Thorax
Diaphragm
A muscle beneath the lungs that assists breathing.
The airtight sac surrounding each lung.
What is the scientific word for 'rib bones'?
Costals
Trachea
The pipe used for transporting food is the (1), the pipe used for transporting air is the (2).
1) trachea
2) esophagus
1) esophagus
2) trachea
The (1) splits into the (2) which then further splits into the (3).
Trachea
Bronchi
Bronchioles
Trachea
Bronchioles
Bronchi
Grape like sacs in the lungs that exchange gas with the capillaries.
Cilia
Alveoli
A sticky liquid made in the mouth and contains amylase enzyme is (1)
A sticky liquid made in the nose and breathing pipes is (2)
1) mucus
2) saliva
1) saliva
2) mucus
Mucus in the trachea...
allows food to move down easily.
traps dirt or bacteria.
The small hair-like structures in the trachea that prevent dirt and bacteria from reaching the lungs.
Cilia
Flagella
Alveoli
Which component of the breathing system has a very large surface area?
Trachea
Alveoli
Bronchi
Are the capillaries very thin or thick?
Very thin, the vessel wall is one cell thick.
Very thick, to aid gas exchange.
In the capillaries, oxygen travels (1) the lungs and CO2 travels (2) the lungs.
1) towards
2) away from
1) away from
2) towards
Where in the respiratory system does gas exchange take place?
Alveoli
Trachea
Pleural Membrane
Diaphragm
Describe the pleural membrane.
A thin air-tight tissue layer surrounding the lungs.
A slippery liquid surrounding the lungs.
Finger-like protrusions that increase surface area.
Describe the cilia.
Finger-like protrusions
Hair-like protrusions
Jelly-like substance
What is mucus?
A liquid substance in the mouth that contains amylase.
A sticky liquid substance in the throat and trachea.
When we breath in ...
The diaphragm moves down.
The diaphragm moves up.
When we exhale (breathe out), the diaphragm muscle ...
contracts and moves down.
relaxes and moves up.
