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- 1. Multiple Choice
Which means to take into the lungs to gain oxygen?
Inhale
Exhale
Respire
Diffuse
- 2. Multiple Choice
A tiny air sac inside a lung, adapted to diffuse oxygen easily.
Bronchiole
Trachea
Alveolus
Nasal Passage
- 3. Multiple Choice
Many systems of organs work together to make up...
An organ
An organism
A cell
A tissue
- 4. Multiple Choice
Besides the mouth, how else can air enter the body from outside?
Diffusion
Skin
Nasal Passage
Stomach
- 5. Multiple Choice
The gas which we need to survive is called...
carbon dioxide
argon
oxygen
nitrogen
- 6. Multiple Choice
The gas which air is mostly made of is called...
carbon dioxide
argon
oxygen
nitrogen
- 7. Multiple Choice
The gas which the body exhales as waste is called...
carbon dioxide
argon
oxygen
nitrogen
- 8. Multiple Choice
Which of these is a way in which alveoli are adapted to work well?
They are very large
They have thick walls
They have thin walls
There are only a few of them
- 9. Multiple Choice
A lung is considered...
An organ system
An organ
An organism
A cell
- 10. Multiple Choice
Which is the smallest?
Trachea
Bronchus
Bronchiole
Lung
- 11. Multiple ChoiceHow much oxygen is in the air? (%)25%21%68%50%
- 12. Multiple ChoiceHow much nitrogen is in the air? (%)75%71%68%60%
- 13. Multiple ChoiceDoes air have a weight?Yes, it doesNo, it doesn`t
- 14. Multiple Choice
A
B
C
D
- 15. Multiple Choice
A
B
C
D
- 16. Multiple Choice
What is the site of gas exchange?
alveoli
bronchus
nose
trachea
- 17. Multiple Choice
Which of the following are features of the alveoli that adapt them to gas exchange?
I. High surface area
II. Thin walls
III. Dry surfaces
I and II only
I only
II and III
I, II, and III
- 18. Multiple Choice
Given the following structures:
1. alveoli
2. bronchi
3. bronchioles
Which of the following is the correct order in which air would flow after inhalation?
1,2,3
2,1,3
2,3,1
3,2,1
- Answer choicesTagsAnswer choicesTags