
Understanding Oxygen and Its Effects

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the air we breathe is composed of oxygen?
78%
21%
1%
50%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a by-product of cellular respiration that can cause damage to cells?
Carbon dioxide
Nitrogen
Free radicals
Antioxidants
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do antioxidants help the body?
They dissolve in water.
They produce energy.
They neutralize free radicals.
They increase oxygen levels.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does nitrogen play in the lungs?
It dissolves in the blood.
It produces energy.
It helps keep the lungs inflated.
It reacts with oxygen.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What could happen if you breathe pure oxygen for an extended period?
Improved lung function
Lung collapse
Increased energy levels
Enhanced cellular respiration
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