What is the basic requirement for breathing of every living cell in the body?

The basic requirement for breathing in every living cell is the presence of oxygen, which is essential for cellular respiration. This process allows cells to convert glucose and oxygen into energy, carbon dioxide, and water. Additionally, cells must efficiently remove carbon dioxide, a waste product of respiration, to maintain homeostasis and optimal functioning. Thus, a continuous supply of oxygen and the removal of carbon dioxide are critical for cellular health and energy production.