What is the function of oxygen in cells and engines?

Oxygen is used to derive energy.

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Oxygen is used to burn (break) energy rich chemicals.

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Oxygen is needed to transport usable energy.

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Oxygen is needed to store energy.

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Solution

The correct option is B
Oxygen is used to burn (break) energy rich chemicals.

Oxygen is used in cells of living organisms to breakdown molecules that store energy such as glucose and pyruvic acid. This breaking down or burning releases energy that living things can use.

A car’s engine also breaks down energy rich chemicals in fuel. This releases energy which is used to make the car move.

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Similar questions

Q. All cells use oxygen to produce energy.

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