Answer:
All cells in the body need oxygen to generate energy through a process called cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. The energy produced by cellular respiration is used by cells to carry out various functions necessary for life.
During cellular respiration, oxygen is used as the final electron acceptor in the electron transport chain, which is the process by which energy is extracted from glucose. Without oxygen, the electron transport chain cannot function properly, and cells cannot generate energy through aerobic respiration. Instead, they switch to anaerobic respiration, which produces much less energy and also leads to the buildup of lactic acid.
Therefore, all cells in the body need oxygen to carry out cellular respiration and generate the energy required for their normal functions. Lack of oxygen can lead to cell death, tissue damage, and eventually organ failure.
Step-by-step explanation: