Why do the cells of living organisms need the respiration process?

All living cells need oxygen. Oxygen is an important substance that can make up 60 to 75% of a cell’s chemistry. Also, oxygen must be used to oxidize organic matter during energy metabolism. Oxygen is involved in many processes of the cell’s life. If for some reason the supply of oxygen to the cell has stopped, the cell dies in a few minutes. This is called hypoxia. Lack of oxygen is more dangerous than lack of water or food.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.