Understanding Oxygen and Its Effects

Understanding Oxygen and Its Effects

Assessment

Interactive Video

Biology

9th - 10th Grade

Practice Problem

Hard

Created by

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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