explain why cellular respiration is a necessary process for living things. include what organelle it occurs in.

Cellular respiration is an essential process that living things use to convert the energy stored in food (like glucose) into a usable form of energy called ATP. This ATP powers all the activities cells need to survive, such as growth, repair, movement, and other vital chemical reactions. Cellular respiration mainly occurs in a special organelle called the mitochondrion , often called the "powerhouse of the cell." There, glucose combines with oxygen to produce ATP, along with carbon dioxide and water as byproducts. Before explaining more, I'd love to know: How familiar are you with cellular respiration right now? This will help me tailor the explanation to your level.