Question

why do organisms need to obtain energy via cellular respiration?

Answer 1

Organisms need to obtain energy via cellular respiration because energy is required for all the essential processes of life. Cellular respiration is the process by which cells break down nutrients such as glucose to release energy in the form of ATP (adenosine triphosphate), which is used as the primary energy currency of cells. ATP provides the energy needed for various cellular activities, including growth, repair, reproduction, movement, and the synthesis of molecules. Without cellular respiration and ATP production, organisms would not be able to carry out these vital functions and would ultimately cease to exist.