Which process occurs during cellular respiration?

During cellular respiration, glucose is converted into energy, which is a fundamental process that occurs in the cells of organisms. This process involves breaking down glucose molecules to release energy that is stored in the form of ATP (adenosine triphosphate), which is vital for cellular activities.

Cellular respiration primarily occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain. In glycolysis, glucose is broken down into pyruvate, releasing a small amount of energy. The pyruvate then enters the Krebs cycle, where it undergoes further transformation, releasing carbon dioxide and generating high-energy carriers. Finally, the electron transport chain uses these carriers to produce a large amount of ATP by utilizing oxygen to accept electrons.

This energy conversion is essential for sustaining life processes, enabling cells to perform functions necessary for growth, reproduction, and maintenance.