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Respiration
Test Description: Seventh grade test on Respiration and Smoking
Instructions: Answer all questions to get your test result.
1) Which substances are produced during respiration?
A
water and oxygen
B
oxygen and red blood cells
C
carbon dioxide and water
D
carbon dioxide and red blood cells
2) Where in the respiratory system does gas exchange occur?
A
in the pharynx
B
in the trachea
C
in the alveoli
D
in the heart
3) The role of the respiratory system is to bring what substance into the body?
A
oxygen
B
water
C
red blood cells
D
carbon dioxide
4) During gas exchange, which substances move from the alveoli into the blood?
A
carbon dioxide
B
oxygen
C
water
D
nitrogen
5) The dome-shaped muscle that plays a role in breathing is the
A
alveolus
B
bronchus
C
diaphragm
D
larynx
6) What happens to cause air to be exhaled from the lungs?
A
The rib muscles contract and move outward
B
The lungs contract and then expand
C
The diaphragm relaxes and moves upward
D
The chest cavity expands and grows larger
7) Which chemical in tobacco smoke binds to hemoglobin ?
A
nitrogen
B
carbon monoxide
C
tar
D
nicotine
8) Which chemical in tobacco smoke is an addictive drug?
A
carbon monoxide
B
nicotine
C
tar
D
nitrogen
9) Name the condition in which smoking can irritate the breathing passages.
A
lung cancer
B
emphysema
C
bronchitis
D
heart attacks
10) Each alveolus is surrounded by a network of
A
capillaries
B
veins
C
arteries
D
cilia
*select an answer for all questions
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