Question

why do the cell need oxygen?????​

Answer 1

Explanation:

Our body cells require oxygen to release energy. The oxygen that we take in during respiration is used to break down the food we eat to release energy from it. When we breathe in oxygen, it diffuses into blood from the lung alveoli.

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Answer 2

Answer:

because our body cells require oxygen to release energy the oxygen inhaled during respiration is used to break down the food to release energy.