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