Why do people animals do organisms do cell respiration?

Organisms, including animals and plants, perform cellular respiration to convert the biochemical energy stored in nutrients into adenosine triphosphate (ATP), which is essential for powering various cellular processes. This process involves breaking down glucose and other substrates in the presence of oxygen (aerobic respiration) or without it (anaerobic respiration). The ATP produced is crucial for functions such as muscle contraction, nerve impulse transmission, and biOSynthesis of molecules necessary for growth and maintenance. Ultimately, cellular respiration enables organisms to sustain life by providing the energy required for survival and reproduction.