Question

do all the cells use oxygen to produce energy​

Answer 1

No, cells do not necessarily need oxygen in order to produce energy. Cells can go through anaerobic respiration to produce energy. In order to produce energy, cells have to go through respiration.

Answer 2

Answer:

yes

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.