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WorksheetsRespiration
Total questions: 10
Worksheet time: 3hrs 30mins
Through what organ does the air move from the outside to the inside?
Nose
Mouth
Lungs
What nose part purifies the air when inhalation?
Diaphragm
Nostrils
Larynx
Pharynx
What are the tiny air sacs in the lungs called?
Trachea
Vertebrates
Alveoli
What does the trachea divide into?
Pharynx
Larynx
The trachea divides into two bronchi. The bronchi then divide into bronchioles and finally alveoli.
What allows the alveoli to be the site of gas exchange at the level of the lungs?
They are next to the lungs
They are rich with blood capillaries
They are small air sacs
They have a very thin wall.
What happens to the diaphragm when you breathe in (inhalation)?
Raised up
Lowered down
What happens to the diaphragm when you breath out (exhalation)?
Lowered down
Raised up
Vertebrates use their (.) to perform breathing and respiration:
Skin
Lungs
Which two structures does the trachea lead to in the lungs?
Bronchus/bronchi; the trachea leads to two bronchi (one is called a bronchus).
Bronchioles
Alveoli
Lung
What is the gas exchange that occurs between the alveoli and the blood?
Oxygen gas diffuses from the alveoli to the blood. Carbon dioxide gas diffuses from the blood to the alveoli.
Carbon dioxide gas diffuses from the alveoli to the blood. Oxygen gas diffuses from the blood to the alveoli.
